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Finding the Fourth Proportional to 104,281.68, 156,419.46 and 25,394.76

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Solution

The fourth proportional to 104,281.68, 156,419.46 and 25,394.76 is: 38,091.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,281.68 : 156,419.46 = 25,394.76 : x
  2. Step 2: Convert to fraction form
    104,281.68/156,419.46 = 25,394.76/x
  3. Step 3: Cross multiply
    104,281.68x = 156,419.46 × 25,394.76
  4. Step 4: Simplify right side
    104,281.68x = 3,972,234,646.03
  5. Step 5: Solve for x
    x = 3,972,234,646.03/104,281.68
  6. Step 6: Final answer
    x = 38,091.39

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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.