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Finding the Fourth Proportional to 134,079.84, 185,024.20 and 80,394.48

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Solution

The fourth proportional to 134,079.84, 185,024.20 and 80,394.48 is: 110,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,079.84 : 185,024.20 = 80,394.48 : x
  2. Step 2: Convert to fraction form
    134,079.84/185,024.20 = 80,394.48/x
  3. Step 3: Cross multiply
    134,079.84x = 185,024.20 × 80,394.48
  4. Step 4: Simplify right side
    134,079.84x = 14,874,924,346.42
  5. Step 5: Solve for x
    x = 14,874,924,346.42/134,079.84
  6. Step 6: Final answer
    x = 110,940.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.