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Finding the Fourth Proportional to 372,700.80, 559,000.80 and 148,226.40

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Solution

The fourth proportional to 372,700.80, 559,000.80 and 148,226.40 is: 222,319.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,700.80 : 559,000.80 = 148,226.40 : x
  2. Step 2: Convert to fraction form
    372,700.80/559,000.80 = 148,226.40/x
  3. Step 3: Cross multiply
    372,700.80x = 559,000.80 × 148,226.40
  4. Step 4: Simplify right side
    372,700.80x = 82,858,676,181.12
  5. Step 5: Solve for x
    x = 82,858,676,181.12/372,700.80
  6. Step 6: Final answer
    x = 222,319.56

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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.