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Finding the Fourth Proportional to 71,256.80, 106,901.40 and 41,659.40

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Solution

The fourth proportional to 71,256.80, 106,901.40 and 41,659.40 is: 62,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,256.80 : 106,901.40 = 41,659.40 : x
  2. Step 2: Convert to fraction form
    71,256.80/106,901.40 = 41,659.40/x
  3. Step 3: Cross multiply
    71,256.80x = 106,901.40 × 41,659.40
  4. Step 4: Simplify right side
    71,256.80x = 4,453,448,183.16
  5. Step 5: Solve for x
    x = 4,453,448,183.16/71,256.80
  6. Step 6: Final answer
    x = 62,498.57

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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.