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Finding the Fourth Proportional to 75,260.70, 103,864.57 and 49,722.27

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Solution

The fourth proportional to 75,260.70, 103,864.57 and 49,722.27 is: 68,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,260.70 : 103,864.57 = 49,722.27 : x
  2. Step 2: Convert to fraction form
    75,260.70/103,864.57 = 49,722.27/x
  3. Step 3: Cross multiply
    75,260.70x = 103,864.57 × 49,722.27
  4. Step 4: Simplify right side
    75,260.70x = 5,164,381,679.18
  5. Step 5: Solve for x
    x = 5,164,381,679.18/75,260.70
  6. Step 6: Final answer
    x = 68,619.90

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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.