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Finding the Fourth Proportional to 113,507.87, 156,647.94 and 62,520.59

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Solution

The fourth proportional to 113,507.87, 156,647.94 and 62,520.59 is: 86,282.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,507.87 : 156,647.94 = 62,520.59 : x
  2. Step 2: Convert to fraction form
    113,507.87/156,647.94 = 62,520.59/x
  3. Step 3: Cross multiply
    113,507.87x = 156,647.94 × 62,520.59
  4. Step 4: Simplify right side
    113,507.87x = 9,793,721,631.08
  5. Step 5: Solve for x
    x = 9,793,721,631.08/113,507.87
  6. Step 6: Final answer
    x = 86,282.31

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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.