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Finding the Fourth Proportional to 334,769.52, 502,171.56 and 85,453.68

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Solution

The fourth proportional to 334,769.52, 502,171.56 and 85,453.68 is: 128,184.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,769.52 : 502,171.56 = 85,453.68 : x
  2. Step 2: Convert to fraction form
    334,769.52/502,171.56 = 85,453.68/x
  3. Step 3: Cross multiply
    334,769.52x = 502,171.56 × 85,453.68
  4. Step 4: Simplify right side
    334,769.52x = 42,912,407,793.34
  5. Step 5: Solve for x
    x = 42,912,407,793.34/334,769.52
  6. Step 6: Final answer
    x = 128,184.93

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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.