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Finding the Fourth Proportional to 104,304.70, 156,457.05 and 25,419.61

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Solution

The fourth proportional to 104,304.70, 156,457.05 and 25,419.61 is: 38,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,304.70 : 156,457.05 = 25,419.61 : x
  2. Step 2: Convert to fraction form
    104,304.70/156,457.05 = 25,419.61/x
  3. Step 3: Cross multiply
    104,304.70x = 156,457.05 × 25,419.61
  4. Step 4: Simplify right side
    104,304.70x = 3,977,077,192.75
  5. Step 5: Solve for x
    x = 3,977,077,192.75/104,304.70
  6. Step 6: Final answer
    x = 38,129.42

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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.