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Finding the Fourth Proportional to 97,487.49, 134,456.31 and 63,506.70

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Solution

The fourth proportional to 97,487.49, 134,456.31 and 63,506.70 is: 87,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,487.49 : 134,456.31 = 63,506.70 : x
  2. Step 2: Convert to fraction form
    97,487.49/134,456.31 = 63,506.70/x
  3. Step 3: Cross multiply
    97,487.49x = 134,456.31 × 63,506.70
  4. Step 4: Simplify right side
    97,487.49x = 8,538,876,542.28
  5. Step 5: Solve for x
    x = 8,538,876,542.28/97,487.49
  6. Step 6: Final answer
    x = 87,589.46

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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.