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Finding the Fourth Proportional to 101,159.10, 139,655.48 and 60,882.75

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Solution

The fourth proportional to 101,159.10, 139,655.48 and 60,882.75 is: 84,051.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,159.10 : 139,655.48 = 60,882.75 : x
  2. Step 2: Convert to fraction form
    101,159.10/139,655.48 = 60,882.75/x
  3. Step 3: Cross multiply
    101,159.10x = 139,655.48 × 60,882.75
  4. Step 4: Simplify right side
    101,159.10x = 8,502,609,370.56
  5. Step 5: Solve for x
    x = 8,502,609,370.56/101,159.10
  6. Step 6: Final answer
    x = 84,051.85

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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.