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Finding the Fourth Proportional to 372,514.80, 558,568.08 and 147,647.46

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Solution

The fourth proportional to 372,514.80, 558,568.08 and 147,647.46 is: 221,390.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,514.80 : 558,568.08 = 147,647.46 : x
  2. Step 2: Convert to fraction form
    372,514.80/558,568.08 = 147,647.46/x
  3. Step 3: Cross multiply
    372,514.80x = 558,568.08 × 147,647.46
  4. Step 4: Simplify right side
    372,514.80x = 82,471,158,249.08
  5. Step 5: Solve for x
    x = 82,471,158,249.08/372,514.80
  6. Step 6: Final answer
    x = 221,390.29

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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.