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Finding the Fourth Proportional to 372,574.15, 558,421.19 and 159,279.68

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Solution

The fourth proportional to 372,574.15, 558,421.19 and 159,279.68 is: 238,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,574.15 : 558,421.19 = 159,279.68 : x
  2. Step 2: Convert to fraction form
    372,574.15/558,421.19 = 159,279.68/x
  3. Step 3: Cross multiply
    372,574.15x = 558,421.19 × 159,279.68
  4. Step 4: Simplify right side
    372,574.15x = 88,945,147,652.02
  5. Step 5: Solve for x
    x = 88,945,147,652.02/372,574.15
  6. Step 6: Final answer
    x = 238,731.40

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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.