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Finding the Fourth Proportional to 134,472.85, 201,731.16 and 39,712.61

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Solution

The fourth proportional to 134,472.85, 201,731.16 and 39,712.61 is: 59,575.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,472.85 : 201,731.16 = 39,712.61 : x
  2. Step 2: Convert to fraction form
    134,472.85/201,731.16 = 39,712.61/x
  3. Step 3: Cross multiply
    134,472.85x = 201,731.16 × 39,712.61
  4. Step 4: Simplify right side
    134,472.85x = 8,011,270,881.93
  5. Step 5: Solve for x
    x = 8,011,270,881.93/134,472.85
  6. Step 6: Final answer
    x = 59,575.38

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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.