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Finding the Fourth Proportional to 527,399.41, 791,120.96 and 153,422.41

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Solution

The fourth proportional to 527,399.41, 791,120.96 and 153,422.41 is: 230,139.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,399.41 : 791,120.96 = 153,422.41 : x
  2. Step 2: Convert to fraction form
    527,399.41/791,120.96 = 153,422.41/x
  3. Step 3: Cross multiply
    527,399.41x = 791,120.96 × 153,422.41
  4. Step 4: Simplify right side
    527,399.41x = 121,375,683,517.60
  5. Step 5: Solve for x
    x = 121,375,683,517.60/527,399.41
  6. Step 6: Final answer
    x = 230,139.97

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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.