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Finding the Fourth Proportional to 74,087.36, 102,273.92 and 47,265.92

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Solution

The fourth proportional to 74,087.36, 102,273.92 and 47,265.92 is: 65,248.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,087.36 : 102,273.92 = 47,265.92 : x
  2. Step 2: Convert to fraction form
    74,087.36/102,273.92 = 47,265.92/x
  3. Step 3: Cross multiply
    74,087.36x = 102,273.92 × 47,265.92
  4. Step 4: Simplify right side
    74,087.36x = 4,834,070,920.81
  5. Step 5: Solve for x
    x = 4,834,070,920.81/74,087.36
  6. Step 6: Final answer
    x = 65,248.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.