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Finding the Fourth Proportional to 125,462.92, 173,137.14 and 71,756.68

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Solution

The fourth proportional to 125,462.92, 173,137.14 and 71,756.68 is: 99,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,462.92 : 173,137.14 = 71,756.68 : x
  2. Step 2: Convert to fraction form
    125,462.92/173,137.14 = 71,756.68/x
  3. Step 3: Cross multiply
    125,462.92x = 173,137.14 × 71,756.68
  4. Step 4: Simplify right side
    125,462.92x = 12,423,746,351.10
  5. Step 5: Solve for x
    x = 12,423,746,351.10/125,462.92
  6. Step 6: Final answer
    x = 99,023.25

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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.