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Finding the Fourth Proportional to 72,632.10, 109,166.85 and 63,009.30

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Solution

The fourth proportional to 72,632.10, 109,166.85 and 63,009.30 is: 94,703.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,632.10 : 109,166.85 = 63,009.30 : x
  2. Step 2: Convert to fraction form
    72,632.10/109,166.85 = 63,009.30/x
  3. Step 3: Cross multiply
    72,632.10x = 109,166.85 × 63,009.30
  4. Step 4: Simplify right side
    72,632.10x = 6,878,526,801.71
  5. Step 5: Solve for x
    x = 6,878,526,801.71/72,632.10
  6. Step 6: Final answer
    x = 94,703.68

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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.