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Finding the Fourth Proportional to 71,006,532.80, 106,509,799.20 and 58,241,451.20

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Solution

The fourth proportional to 71,006,532.80, 106,509,799.20 and 58,241,451.20 is: 87,362,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,006,532.80 : 106,509,799.20 = 58,241,451.20 : x
  2. Step 2: Convert to fraction form
    71,006,532.80/106,509,799.20 = 58,241,451.20/x
  3. Step 3: Cross multiply
    71,006,532.80x = 106,509,799.20 × 58,241,451.20
  4. Step 4: Simplify right side
    71,006,532.80x = 6,203,285,272,428,600
  5. Step 5: Solve for x
    x = 6,203,285,272,428,600/71,006,532.80
  6. Step 6: Final answer
    x = 87,362,176.80

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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.