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Finding the Fourth Proportional to 104,239.16, 156,358.47 and 73,212.92

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Solution

The fourth proportional to 104,239.16, 156,358.47 and 73,212.92 is: 109,819.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,239.16 : 156,358.47 = 73,212.92 : x
  2. Step 2: Convert to fraction form
    104,239.16/156,358.47 = 73,212.92/x
  3. Step 3: Cross multiply
    104,239.16x = 156,358.47 × 73,212.92
  4. Step 4: Simplify right side
    104,239.16x = 11,447,460,155.43
  5. Step 5: Solve for x
    x = 11,447,460,155.43/104,239.16
  6. Step 6: Final answer
    x = 109,819.19

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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.