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Finding the Fourth Proportional to 381,655.69, 572,746.01 and 132,337.69

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Solution

The fourth proportional to 381,655.69, 572,746.01 and 132,337.69 is: 198,597.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,655.69 : 572,746.01 = 132,337.69 : x
  2. Step 2: Convert to fraction form
    381,655.69/572,746.01 = 132,337.69/x
  3. Step 3: Cross multiply
    381,655.69x = 572,746.01 × 132,337.69
  4. Step 4: Simplify right side
    381,655.69x = 75,795,881,826.56
  5. Step 5: Solve for x
    x = 75,795,881,826.56/381,655.69
  6. Step 6: Final answer
    x = 198,597.54

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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.