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Finding the Fourth Proportional to 104,862.52, 144,741.90 and 71,347.96

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Solution

The fourth proportional to 104,862.52, 144,741.90 and 71,347.96 is: 98,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,862.52 : 144,741.90 = 71,347.96 : x
  2. Step 2: Convert to fraction form
    104,862.52/144,741.90 = 71,347.96/x
  3. Step 3: Cross multiply
    104,862.52x = 144,741.90 × 71,347.96
  4. Step 4: Simplify right side
    104,862.52x = 10,327,039,291.52
  5. Step 5: Solve for x
    x = 10,327,039,291.52/104,862.52
  6. Step 6: Final answer
    x = 98,481.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.