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Finding the Fourth Proportional to 572,081.80, 858,122.70 and 151,400.20

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Solution

The fourth proportional to 572,081.80, 858,122.70 and 151,400.20 is: 227,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,081.80 : 858,122.70 = 151,400.20 : x
  2. Step 2: Convert to fraction form
    572,081.80/858,122.70 = 151,400.20/x
  3. Step 3: Cross multiply
    572,081.80x = 858,122.70 × 151,400.20
  4. Step 4: Simplify right side
    572,081.80x = 129,919,948,404.54
  5. Step 5: Solve for x
    x = 129,919,948,404.54/572,081.80
  6. Step 6: Final answer
    x = 227,100.30

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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.