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Finding the Fourth Proportional to 218,432.16, 327,371.18 and 98,361

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Solution

The fourth proportional to 218,432.16, 327,371.18 and 98,361 is: 147,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,432.16 : 327,371.18 = 98,361 : x
  2. Step 2: Convert to fraction form
    218,432.16/327,371.18 = 98,361/x
  3. Step 3: Cross multiply
    218,432.16x = 327,371.18 × 98,361
  4. Step 4: Simplify right side
    218,432.16x = 32,200,556,635.98
  5. Step 5: Solve for x
    x = 32,200,556,635.98/218,432.16
  6. Step 6: Final answer
    x = 147,416.74

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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.