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Finding the Fourth Proportional to 142,251.44, 213,374.40 and 42,479.24

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Solution

The fourth proportional to 142,251.44, 213,374.40 and 42,479.24 is: 63,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,251.44 : 213,374.40 = 42,479.24 : x
  2. Step 2: Convert to fraction form
    142,251.44/213,374.40 = 42,479.24/x
  3. Step 3: Cross multiply
    142,251.44x = 213,374.40 × 42,479.24
  4. Step 4: Simplify right side
    142,251.44x = 9,063,982,347.46
  5. Step 5: Solve for x
    x = 9,063,982,347.46/142,251.44
  6. Step 6: Final answer
    x = 63,718.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.