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Finding the Fourth Proportional to 113,158.75, 169,513.96 and 77,532.52

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Solution

The fourth proportional to 113,158.75, 169,513.96 and 77,532.52 is: 116,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,158.75 : 169,513.96 = 77,532.52 : x
  2. Step 2: Convert to fraction form
    113,158.75/169,513.96 = 77,532.52/x
  3. Step 3: Cross multiply
    113,158.75x = 169,513.96 × 77,532.52
  4. Step 4: Simplify right side
    113,158.75x = 13,142,844,493.98
  5. Step 5: Solve for x
    x = 13,142,844,493.98/113,158.75
  6. Step 6: Final answer
    x = 116,145.19

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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.