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Finding the Fourth Proportional to 125,280.24, 172,885.48 and 68,691.48

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Solution

The fourth proportional to 125,280.24, 172,885.48 and 68,691.48 is: 94,793.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,280.24 : 172,885.48 = 68,691.48 : x
  2. Step 2: Convert to fraction form
    125,280.24/172,885.48 = 68,691.48/x
  3. Step 3: Cross multiply
    125,280.24x = 172,885.48 × 68,691.48
  4. Step 4: Simplify right side
    125,280.24x = 11,875,759,491.71
  5. Step 5: Solve for x
    x = 11,875,759,491.71/125,280.24
  6. Step 6: Final answer
    x = 94,793.56

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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.