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Finding the Fourth Proportional to 108,774.70, 150,101.10 and 60,379.43

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Solution

The fourth proportional to 108,774.70, 150,101.10 and 60,379.43 is: 83,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,774.70 : 150,101.10 = 60,379.43 : x
  2. Step 2: Convert to fraction form
    108,774.70/150,101.10 = 60,379.43/x
  3. Step 3: Cross multiply
    108,774.70x = 150,101.10 × 60,379.43
  4. Step 4: Simplify right side
    108,774.70x = 9,063,018,109.87
  5. Step 5: Solve for x
    x = 9,063,018,109.87/108,774.70
  6. Step 6: Final answer
    x = 83,319.18

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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.