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Finding the Fourth Proportional to 250,610.15, 375,790.85 and 79,809.60

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Solution

The fourth proportional to 250,610.15, 375,790.85 and 79,809.60 is: 119,674.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,610.15 : 375,790.85 = 79,809.60 : x
  2. Step 2: Convert to fraction form
    250,610.15/375,790.85 = 79,809.60/x
  3. Step 3: Cross multiply
    250,610.15x = 375,790.85 × 79,809.60
  4. Step 4: Simplify right side
    250,610.15x = 29,991,717,023.11
  5. Step 5: Solve for x
    x = 29,991,717,023.11/250,610.15
  6. Step 6: Final answer
    x = 119,674.79

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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.