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Finding the Fourth Proportional to 357,108.88, 535,694.76 and 132,471.76

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Solution

The fourth proportional to 357,108.88, 535,694.76 and 132,471.76 is: 198,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,108.88 : 535,694.76 = 132,471.76 : x
  2. Step 2: Convert to fraction form
    357,108.88/535,694.76 = 132,471.76/x
  3. Step 3: Cross multiply
    357,108.88x = 535,694.76 × 132,471.76
  4. Step 4: Simplify right side
    357,108.88x = 70,964,427,679.98
  5. Step 5: Solve for x
    x = 70,964,427,679.98/357,108.88
  6. Step 6: Final answer
    x = 198,719.30

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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.