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Finding the Fourth Proportional to 72,071,856,009.90, 108,107,784,014.85 and 72,071,856,009.90

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Solution

The fourth proportional to 72,071,856,009.90, 108,107,784,014.85 and 72,071,856,009.90 is: 108,107,784,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,071,856,009.90 : 108,107,784,014.85 = 72,071,856,009.90 : x
  2. Step 2: Convert to fraction form
    72,071,856,009.90/108,107,784,014.85 = 72,071,856,009.90/x
  3. Step 3: Cross multiply
    72,071,856,009.90x = 108,107,784,014.85 × 72,071,856,009.90
  4. Step 4: Simplify right side
    72,071,856,009.90x = 7,791,528,643,067,637,661,696
  5. Step 5: Solve for x
    x = 7,791,528,643,067,637,661,696/72,071,856,009.90
  6. Step 6: Final answer
    x = 108,107,784,014.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.