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Finding the Fourth Proportional to 261,175.01, 392,125.68 and 134,908.56

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Solution

The fourth proportional to 261,175.01, 392,125.68 and 134,908.56 is: 202,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,175.01 : 392,125.68 = 134,908.56 : x
  2. Step 2: Convert to fraction form
    261,175.01/392,125.68 = 134,908.56/x
  3. Step 3: Cross multiply
    261,175.01x = 392,125.68 × 134,908.56
  4. Step 4: Simplify right side
    261,175.01x = 52,901,110,827.82
  5. Step 5: Solve for x
    x = 52,901,110,827.82/261,175.01
  6. Step 6: Final answer
    x = 202,550.43

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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.