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Finding the Fourth Proportional to 158,419.20, 237,620.16 and 53,227.20

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Solution

The fourth proportional to 158,419.20, 237,620.16 and 53,227.20 is: 79,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,419.20 : 237,620.16 = 53,227.20 : x
  2. Step 2: Convert to fraction form
    158,419.20/237,620.16 = 53,227.20/x
  3. Step 3: Cross multiply
    158,419.20x = 237,620.16 × 53,227.20
  4. Step 4: Simplify right side
    158,419.20x = 12,647,855,780.35
  5. Step 5: Solve for x
    x = 12,647,855,780.35/158,419.20
  6. Step 6: Final answer
    x = 79,837.90

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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.