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Finding the Fourth Proportional to 170,761.40, 256,117.80 and 58,446.80

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Solution

The fourth proportional to 170,761.40, 256,117.80 and 58,446.80 is: 87,661.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,761.40 : 256,117.80 = 58,446.80 : x
  2. Step 2: Convert to fraction form
    170,761.40/256,117.80 = 58,446.80/x
  3. Step 3: Cross multiply
    170,761.40x = 256,117.80 × 58,446.80
  4. Step 4: Simplify right side
    170,761.40x = 14,969,265,833.04
  5. Step 5: Solve for x
    x = 14,969,265,833.04/170,761.40
  6. Step 6: Final answer
    x = 87,661.88

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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.