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Finding the Fourth Proportional to 108,503.65, 149,747.84 and 60,747.77

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Solution

The fourth proportional to 108,503.65, 149,747.84 and 60,747.77 is: 83,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,503.65 : 149,747.84 = 60,747.77 : x
  2. Step 2: Convert to fraction form
    108,503.65/149,747.84 = 60,747.77/x
  3. Step 3: Cross multiply
    108,503.65x = 149,747.84 × 60,747.77
  4. Step 4: Simplify right side
    108,503.65x = 9,096,847,640.75
  5. Step 5: Solve for x
    x = 9,096,847,640.75/108,503.65
  6. Step 6: Final answer
    x = 83,839.09

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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.