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Finding the Fourth Proportional to 113,482, 156,610.02 and 63,181

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Solution

The fourth proportional to 113,482, 156,610.02 and 63,181 is: 87,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,482 : 156,610.02 = 63,181 : x
  2. Step 2: Convert to fraction form
    113,482/156,610.02 = 63,181/x
  3. Step 3: Cross multiply
    113,482x = 156,610.02 × 63,181
  4. Step 4: Simplify right side
    113,482x = 9,894,777,673.62
  5. Step 5: Solve for x
    x = 9,894,777,673.62/113,482
  6. Step 6: Final answer
    x = 87,192.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.