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Finding the Fourth Proportional to 125,687.80, 173,444.74 and 69,098.76

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Solution

The fourth proportional to 125,687.80, 173,444.74 and 69,098.76 is: 95,353.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,687.80 : 173,444.74 = 69,098.76 : x
  2. Step 2: Convert to fraction form
    125,687.80/173,444.74 = 69,098.76/x
  3. Step 3: Cross multiply
    125,687.80x = 173,444.74 × 69,098.76
  4. Step 4: Simplify right side
    125,687.80x = 11,984,816,462.52
  5. Step 5: Solve for x
    x = 11,984,816,462.52/125,687.80
  6. Step 6: Final answer
    x = 95,353.86

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1.5x scale

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.