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Finding the Fourth Proportional to 125,928, 173,776.56 and 69,337.92

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Solution

The fourth proportional to 125,928, 173,776.56 and 69,337.92 is: 95,684.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,928 : 173,776.56 = 69,337.92 : x
  2. Step 2: Convert to fraction form
    125,928/173,776.56 = 69,337.92/x
  3. Step 3: Cross multiply
    125,928x = 173,776.56 × 69,337.92
  4. Step 4: Simplify right side
    125,928x = 12,049,305,215.16
  5. Step 5: Solve for x
    x = 12,049,305,215.16/125,928
  6. Step 6: Final answer
    x = 95,684.08

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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.