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Finding the Fourth Proportional to 351,754.92, 527,681.55 and 115,050.42

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Solution

The fourth proportional to 351,754.92, 527,681.55 and 115,050.42 is: 172,591.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,754.92 : 527,681.55 = 115,050.42 : x
  2. Step 2: Convert to fraction form
    351,754.92/527,681.55 = 115,050.42/x
  3. Step 3: Cross multiply
    351,754.92x = 527,681.55 × 115,050.42
  4. Step 4: Simplify right side
    351,754.92x = 60,709,983,953.75
  5. Step 5: Solve for x
    x = 60,709,983,953.75/351,754.92
  6. Step 6: Final answer
    x = 172,591.71

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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.