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Finding the Fourth Proportional to 372,491.15, 558,755.15 and 106,290.86

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Solution

The fourth proportional to 372,491.15, 558,755.15 and 106,290.86 is: 159,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,491.15 : 558,755.15 = 106,290.86 : x
  2. Step 2: Convert to fraction form
    372,491.15/558,755.15 = 106,290.86/x
  3. Step 3: Cross multiply
    372,491.15x = 558,755.15 × 106,290.86
  4. Step 4: Simplify right side
    372,491.15x = 59,390,562,097.70
  5. Step 5: Solve for x
    x = 59,390,562,097.70/372,491.15
  6. Step 6: Final answer
    x = 159,441.54

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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.