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Finding the Fourth Proportional to 80,317.89, 110,841.55 and 48,480.57

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Solution

The fourth proportional to 80,317.89, 110,841.55 and 48,480.57 is: 66,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,317.89 : 110,841.55 = 48,480.57 : x
  2. Step 2: Convert to fraction form
    80,317.89/110,841.55 = 48,480.57/x
  3. Step 3: Cross multiply
    80,317.89x = 110,841.55 × 48,480.57
  4. Step 4: Simplify right side
    80,317.89x = 5,373,661,402.48
  5. Step 5: Solve for x
    x = 5,373,661,402.48/80,317.89
  6. Step 6: Final answer
    x = 66,904.91

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1.5x scale

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.