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Finding the Fourth Proportional to 108,874.38, 163,248 and 42,236.64

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Solution

The fourth proportional to 108,874.38, 163,248 and 42,236.64 is: 63,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,874.38 : 163,248 = 42,236.64 : x
  2. Step 2: Convert to fraction form
    108,874.38/163,248 = 42,236.64/x
  3. Step 3: Cross multiply
    108,874.38x = 163,248 × 42,236.64
  4. Step 4: Simplify right side
    108,874.38x = 6,895,047,006.72
  5. Step 5: Solve for x
    x = 6,895,047,006.72/108,874.38
  6. Step 6: Final answer
    x = 63,330.30

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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.