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Finding the Fourth Proportional to 60,572.61, 90,764.45 and 38,339.02

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Solution

The fourth proportional to 60,572.61, 90,764.45 and 38,339.02 is: 57,448.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,572.61 : 90,764.45 = 38,339.02 : x
  2. Step 2: Convert to fraction form
    60,572.61/90,764.45 = 38,339.02/x
  3. Step 3: Cross multiply
    60,572.61x = 90,764.45 × 38,339.02
  4. Step 4: Simplify right side
    60,572.61x = 3,479,820,129.37
  5. Step 5: Solve for x
    x = 3,479,820,129.37/60,572.61
  6. Step 6: Final answer
    x = 57,448.74

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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.