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Finding the Fourth Proportional to 104,872.59, 157,248.14 and 71,632.82

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Solution

The fourth proportional to 104,872.59, 157,248.14 and 71,632.82 is: 107,407.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,872.59 : 157,248.14 = 71,632.82 : x
  2. Step 2: Convert to fraction form
    104,872.59/157,248.14 = 71,632.82/x
  3. Step 3: Cross multiply
    104,872.59x = 157,248.14 × 71,632.82
  4. Step 4: Simplify right side
    104,872.59x = 11,264,127,742.91
  5. Step 5: Solve for x
    x = 11,264,127,742.91/104,872.59
  6. Step 6: Final answer
    x = 107,407.74

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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.