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Finding the Fourth Proportional to 101,191.48, 139,734.11 and 63,016.58

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Solution

The fourth proportional to 101,191.48, 139,734.11 and 63,016.58 is: 87,018.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,191.48 : 139,734.11 = 63,016.58 : x
  2. Step 2: Convert to fraction form
    101,191.48/139,734.11 = 63,016.58/x
  3. Step 3: Cross multiply
    101,191.48x = 139,734.11 × 63,016.58
  4. Step 4: Simplify right side
    101,191.48x = 8,805,566,228.42
  5. Step 5: Solve for x
    x = 8,805,566,228.42/101,191.48
  6. Step 6: Final answer
    x = 87,018.85

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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.