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Finding the Fourth Proportional to 108,451.40, 162,600.30 and 41,865.80

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Solution

The fourth proportional to 108,451.40, 162,600.30 and 41,865.80 is: 62,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,451.40 : 162,600.30 = 41,865.80 : x
  2. Step 2: Convert to fraction form
    108,451.40/162,600.30 = 41,865.80/x
  3. Step 3: Cross multiply
    108,451.40x = 162,600.30 × 41,865.80
  4. Step 4: Simplify right side
    108,451.40x = 6,807,391,639.74
  5. Step 5: Solve for x
    x = 6,807,391,639.74/108,451.40
  6. Step 6: Final answer
    x = 62,769.05

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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.