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Finding the Fourth Proportional to 108,697.60, 163,046.40 and 38,567.80

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Solution

The fourth proportional to 108,697.60, 163,046.40 and 38,567.80 is: 57,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,697.60 : 163,046.40 = 38,567.80 : x
  2. Step 2: Convert to fraction form
    108,697.60/163,046.40 = 38,567.80/x
  3. Step 3: Cross multiply
    108,697.60x = 163,046.40 × 38,567.80
  4. Step 4: Simplify right side
    108,697.60x = 6,288,340,945.92
  5. Step 5: Solve for x
    x = 6,288,340,945.92/108,697.60
  6. Step 6: Final answer
    x = 57,851.70

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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.