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Finding the Fourth Proportional to 108,487.65, 162,746.87 and 33,613.68

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Solution

The fourth proportional to 108,487.65, 162,746.87 and 33,613.68 is: 50,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,487.65 : 162,746.87 = 33,613.68 : x
  2. Step 2: Convert to fraction form
    108,487.65/162,746.87 = 33,613.68/x
  3. Step 3: Cross multiply
    108,487.65x = 162,746.87 × 33,613.68
  4. Step 4: Simplify right side
    108,487.65x = 5,470,521,209.18
  5. Step 5: Solve for x
    x = 5,470,521,209.18/108,487.65
  6. Step 6: Final answer
    x = 50,425.29

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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.