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Finding the Fourth Proportional to 125,565.60, 173,041.92 and 123,260.16

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Solution

The fourth proportional to 125,565.60, 173,041.92 and 123,260.16 is: 169,864.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,565.60 : 173,041.92 = 123,260.16 : x
  2. Step 2: Convert to fraction form
    125,565.60/173,041.92 = 123,260.16/x
  3. Step 3: Cross multiply
    125,565.60x = 173,041.92 × 123,260.16
  4. Step 4: Simplify right side
    125,565.60x = 21,329,174,745.91
  5. Step 5: Solve for x
    x = 21,329,174,745.91/125,565.60
  6. Step 6: Final answer
    x = 169,864.79

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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.