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Finding the Fourth Proportional to 104,498.70, 156,748.05 and 25,613.70

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Solution

The fourth proportional to 104,498.70, 156,748.05 and 25,613.70 is: 38,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,498.70 : 156,748.05 = 25,613.70 : x
  2. Step 2: Convert to fraction form
    104,498.70/156,748.05 = 25,613.70/x
  3. Step 3: Cross multiply
    104,498.70x = 156,748.05 × 25,613.70
  4. Step 4: Simplify right side
    104,498.70x = 4,014,897,528.29
  5. Step 5: Solve for x
    x = 4,014,897,528.29/104,498.70
  6. Step 6: Final answer
    x = 38,420.55

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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.