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Finding the Fourth Proportional to 230,466.65, 345,856.26 and 80,708.18

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Solution

The fourth proportional to 230,466.65, 345,856.26 and 80,708.18 is: 121,117.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,466.65 : 345,856.26 = 80,708.18 : x
  2. Step 2: Convert to fraction form
    230,466.65/345,856.26 = 80,708.18/x
  3. Step 3: Cross multiply
    230,466.65x = 345,856.26 × 80,708.18
  4. Step 4: Simplify right side
    230,466.65x = 27,913,427,556.93
  5. Step 5: Solve for x
    x = 27,913,427,556.93/230,466.65
  6. Step 6: Final answer
    x = 121,117.00

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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.