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Finding the Fourth Proportional to 39,840,068.80, 59,676,122.40 and 39,840,068.80

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Solution

The fourth proportional to 39,840,068.80, 59,676,122.40 and 39,840,068.80 is: 59,676,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,840,068.80 : 59,676,122.40 = 39,840,068.80 : x
  2. Step 2: Convert to fraction form
    39,840,068.80/59,676,122.40 = 39,840,068.80/x
  3. Step 3: Cross multiply
    39,840,068.80x = 59,676,122.40 × 39,840,068.80
  4. Step 4: Simplify right side
    39,840,068.80x = 2,377,500,822,133,221
  5. Step 5: Solve for x
    x = 2,377,500,822,133,221/39,840,068.80
  6. Step 6: Final answer
    x = 59,676,122.40

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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.