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Finding the Fourth Proportional to 104,406.76, 156,608.79 and 25,521.68

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Solution

The fourth proportional to 104,406.76, 156,608.79 and 25,521.68 is: 38,282.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,406.76 : 156,608.79 = 25,521.68 : x
  2. Step 2: Convert to fraction form
    104,406.76/156,608.79 = 25,521.68/x
  3. Step 3: Cross multiply
    104,406.76x = 156,608.79 × 25,521.68
  4. Step 4: Simplify right side
    104,406.76x = 3,996,919,423.57
  5. Step 5: Solve for x
    x = 3,996,919,423.57/104,406.76
  6. Step 6: Final answer
    x = 38,282.19

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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.