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Finding the Fourth Proportional to 80,873.38, 111,603.76 and 45,062.62

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Solution

The fourth proportional to 80,873.38, 111,603.76 and 45,062.62 is: 62,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,873.38 : 111,603.76 = 45,062.62 : x
  2. Step 2: Convert to fraction form
    80,873.38/111,603.76 = 45,062.62/x
  3. Step 3: Cross multiply
    80,873.38x = 111,603.76 × 45,062.62
  4. Step 4: Simplify right side
    80,873.38x = 5,029,157,827.45
  5. Step 5: Solve for x
    x = 5,029,157,827.45/80,873.38
  6. Step 6: Final answer
    x = 62,185.58

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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.