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Finding the Fourth Proportional to 117,660.80, 176,491.20 and 67,894.40

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Solution

The fourth proportional to 117,660.80, 176,491.20 and 67,894.40 is: 101,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,660.80 : 176,491.20 = 67,894.40 : x
  2. Step 2: Convert to fraction form
    117,660.80/176,491.20 = 67,894.40/x
  3. Step 3: Cross multiply
    117,660.80x = 176,491.20 × 67,894.40
  4. Step 4: Simplify right side
    117,660.80x = 11,982,764,129.28
  5. Step 5: Solve for x
    x = 11,982,764,129.28/117,660.80
  6. Step 6: Final answer
    x = 101,841.60

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1.5x scale

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.