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Finding the Fourth Proportional to 80,466.80, 120,700.20 and 58,233.20

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Solution

The fourth proportional to 80,466.80, 120,700.20 and 58,233.20 is: 87,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,466.80 : 120,700.20 = 58,233.20 : x
  2. Step 2: Convert to fraction form
    80,466.80/120,700.20 = 58,233.20/x
  3. Step 3: Cross multiply
    80,466.80x = 120,700.20 × 58,233.20
  4. Step 4: Simplify right side
    80,466.80x = 7,028,758,886.64
  5. Step 5: Solve for x
    x = 7,028,758,886.64/80,466.80
  6. Step 6: Final answer
    x = 87,349.80

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Double scale
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Similar ratio
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1.5x scale

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.