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Finding the Fourth Proportional to 108,876.60, 163,342.71 and 52,743.60

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Solution

The fourth proportional to 108,876.60, 163,342.71 and 52,743.60 is: 79,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,876.60 : 163,342.71 = 52,743.60 : x
  2. Step 2: Convert to fraction form
    108,876.60/163,342.71 = 52,743.60/x
  3. Step 3: Cross multiply
    108,876.60x = 163,342.71 × 52,743.60
  4. Step 4: Simplify right side
    108,876.60x = 8,615,282,559.16
  5. Step 5: Solve for x
    x = 8,615,282,559.16/108,876.60
  6. Step 6: Final answer
    x = 79,128.87

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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.