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Finding the Fourth Proportional to 178,334.79, 267,503.21 and 45,215.34

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Solution

The fourth proportional to 178,334.79, 267,503.21 and 45,215.34 is: 67,823.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,334.79 : 267,503.21 = 45,215.34 : x
  2. Step 2: Convert to fraction form
    178,334.79/267,503.21 = 45,215.34/x
  3. Step 3: Cross multiply
    178,334.79x = 267,503.21 × 45,215.34
  4. Step 4: Simplify right side
    178,334.79x = 12,095,248,365.16
  5. Step 5: Solve for x
    x = 12,095,248,365.16/178,334.79
  6. Step 6: Final answer
    x = 67,823.27

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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.