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Finding the Fourth Proportional to 92,507.87, 138,817.17 and 39,917.36

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Solution

The fourth proportional to 92,507.87, 138,817.17 and 39,917.36 is: 59,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,507.87 : 138,817.17 = 39,917.36 : x
  2. Step 2: Convert to fraction form
    92,507.87/138,817.17 = 39,917.36/x
  3. Step 3: Cross multiply
    92,507.87x = 138,817.17 × 39,917.36
  4. Step 4: Simplify right side
    92,507.87x = 5,541,214,055.40
  5. Step 5: Solve for x
    x = 5,541,214,055.40/92,507.87
  6. Step 6: Final answer
    x = 59,899.92

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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.