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Finding the Fourth Proportional to 104,402.76, 156,602.79 and 25,517.67

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Solution

The fourth proportional to 104,402.76, 156,602.79 and 25,517.67 is: 38,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,402.76 : 156,602.79 = 25,517.67 : x
  2. Step 2: Convert to fraction form
    104,402.76/156,602.79 = 25,517.67/x
  3. Step 3: Cross multiply
    104,402.76x = 156,602.79 × 25,517.67
  4. Step 4: Simplify right side
    104,402.76x = 3,996,138,316.30
  5. Step 5: Solve for x
    x = 3,996,138,316.30/104,402.76
  6. Step 6: Final answer
    x = 38,276.18

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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.