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Finding the Fourth Proportional to 527,414.89, 791,144.26 and 153,437.89

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Solution

The fourth proportional to 527,414.89, 791,144.26 and 153,437.89 is: 230,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,414.89 : 791,144.26 = 153,437.89 : x
  2. Step 2: Convert to fraction form
    527,414.89/791,144.26 = 153,437.89/x
  3. Step 3: Cross multiply
    527,414.89x = 791,144.26 × 153,437.89
  4. Step 4: Simplify right side
    527,414.89x = 121,391,505,172.82
  5. Step 5: Solve for x
    x = 121,391,505,172.82/527,414.89
  6. Step 6: Final answer
    x = 230,163.21

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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.