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Finding the Fourth Proportional to 178,744.32, 267,874.56 and 67,875.84

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Solution

The fourth proportional to 178,744.32, 267,874.56 and 67,875.84 is: 101,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,744.32 : 267,874.56 = 67,875.84 : x
  2. Step 2: Convert to fraction form
    178,744.32/267,874.56 = 67,875.84/x
  3. Step 3: Cross multiply
    178,744.32x = 267,874.56 × 67,875.84
  4. Step 4: Simplify right side
    178,744.32x = 18,182,210,774.63
  5. Step 5: Solve for x
    x = 18,182,210,774.63/178,744.32
  6. Step 6: Final answer
    x = 101,721.89

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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.