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Finding the Fourth Proportional to 120,679.55, 181,013.44 and 44,792.87

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Solution

The fourth proportional to 120,679.55, 181,013.44 and 44,792.87 is: 67,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,679.55 : 181,013.44 = 44,792.87 : x
  2. Step 2: Convert to fraction form
    120,679.55/181,013.44 = 44,792.87/x
  3. Step 3: Cross multiply
    120,679.55x = 181,013.44 × 44,792.87
  4. Step 4: Simplify right side
    120,679.55x = 8,108,110,581.11
  5. Step 5: Solve for x
    x = 8,108,110,581.11/120,679.55
  6. Step 6: Final answer
    x = 67,187.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.