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Finding the Fourth Proportional to 248,191.68, 372,328.56 and 98,432.76

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Solution

The fourth proportional to 248,191.68, 372,328.56 and 98,432.76 is: 147,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,191.68 : 372,328.56 = 98,432.76 : x
  2. Step 2: Convert to fraction form
    248,191.68/372,328.56 = 98,432.76/x
  3. Step 3: Cross multiply
    248,191.68x = 372,328.56 × 98,432.76
  4. Step 4: Simplify right side
    248,191.68x = 36,649,327,787.63
  5. Step 5: Solve for x
    x = 36,649,327,787.63/248,191.68
  6. Step 6: Final answer
    x = 147,665.42

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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.