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Finding the Fourth Proportional to 104,478.30, 156,741.09 and 34,358.22

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Solution

The fourth proportional to 104,478.30, 156,741.09 and 34,358.22 is: 51,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,478.30 : 156,741.09 = 34,358.22 : x
  2. Step 2: Convert to fraction form
    104,478.30/156,741.09 = 34,358.22/x
  3. Step 3: Cross multiply
    104,478.30x = 156,741.09 × 34,358.22
  4. Step 4: Simplify right side
    104,478.30x = 5,385,344,853.26
  5. Step 5: Solve for x
    x = 5,385,344,853.26/104,478.30
  6. Step 6: Final answer
    x = 51,545.10

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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.