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Finding the Fourth Proportional to 113,797.20, 170,695.80 and 76,472.40

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Solution

The fourth proportional to 113,797.20, 170,695.80 and 76,472.40 is: 114,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,797.20 : 170,695.80 = 76,472.40 : x
  2. Step 2: Convert to fraction form
    113,797.20/170,695.80 = 76,472.40/x
  3. Step 3: Cross multiply
    113,797.20x = 170,695.80 × 76,472.40
  4. Step 4: Simplify right side
    113,797.20x = 13,053,517,495.92
  5. Step 5: Solve for x
    x = 13,053,517,495.92/113,797.20
  6. Step 6: Final answer
    x = 114,708.60

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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.