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Finding the Fourth Proportional to 104,470.88, 144,170.39 and 56,724.23

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Solution

The fourth proportional to 104,470.88, 144,170.39 and 56,724.23 is: 78,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,470.88 : 144,170.39 = 56,724.23 : x
  2. Step 2: Convert to fraction form
    104,470.88/144,170.39 = 56,724.23/x
  3. Step 3: Cross multiply
    104,470.88x = 144,170.39 × 56,724.23
  4. Step 4: Simplify right side
    104,470.88x = 8,177,954,190.75
  5. Step 5: Solve for x
    x = 8,177,954,190.75/104,470.88
  6. Step 6: Final answer
    x = 78,279.75

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1.5x scale

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.