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Finding the Fourth Proportional to 39,478,889.70, 59,112,046.35 and 39,478,889.70

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Solution

The fourth proportional to 39,478,889.70, 59,112,046.35 and 39,478,889.70 is: 59,112,046.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478,889.70 : 59,112,046.35 = 39,478,889.70 : x
  2. Step 2: Convert to fraction form
    39,478,889.70/59,112,046.35 = 39,478,889.70/x
  3. Step 3: Cross multiply
    39,478,889.70x = 59,112,046.35 × 39,478,889.70
  4. Step 4: Simplify right side
    39,478,889.70x = 2,333,677,957,792,938
  5. Step 5: Solve for x
    x = 2,333,677,957,792,938/39,478,889.70
  6. Step 6: Final answer
    x = 59,112,046.35

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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.