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Finding the Fourth Proportional to 73,584,103.80, 110,376,155.70 and 72,072,449.40

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Solution

The fourth proportional to 73,584,103.80, 110,376,155.70 and 72,072,449.40 is: 108,108,674.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,584,103.80 : 110,376,155.70 = 72,072,449.40 : x
  2. Step 2: Convert to fraction form
    73,584,103.80/110,376,155.70 = 72,072,449.40/x
  3. Step 3: Cross multiply
    73,584,103.80x = 110,376,155.70 × 72,072,449.40
  4. Step 4: Simplify right side
    73,584,103.80x = 7,955,079,896,654,772
  5. Step 5: Solve for x
    x = 7,955,079,896,654,772/73,584,103.80
  6. Step 6: Final answer
    x = 108,108,674.10

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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.