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Finding the Fourth Proportional to 372,520.44, 558,854.28 and 147,986.64

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Solution

The fourth proportional to 372,520.44, 558,854.28 and 147,986.64 is: 222,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,520.44 : 558,854.28 = 147,986.64 : x
  2. Step 2: Convert to fraction form
    372,520.44/558,854.28 = 147,986.64/x
  3. Step 3: Cross multiply
    372,520.44x = 558,854.28 × 147,986.64
  4. Step 4: Simplify right side
    372,520.44x = 82,702,967,146.82
  5. Step 5: Solve for x
    x = 82,702,967,146.82/372,520.44
  6. Step 6: Final answer
    x = 222,009.21

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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.