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Finding the Fourth Proportional to 41,206.40, 61,809.60 and 40,899.20

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Solution

The fourth proportional to 41,206.40, 61,809.60 and 40,899.20 is: 61,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,206.40 : 61,809.60 = 40,899.20 : x
  2. Step 2: Convert to fraction form
    41,206.40/61,809.60 = 40,899.20/x
  3. Step 3: Cross multiply
    41,206.40x = 61,809.60 × 40,899.20
  4. Step 4: Simplify right side
    41,206.40x = 2,527,963,192.32
  5. Step 5: Solve for x
    x = 2,527,963,192.32/41,206.40
  6. Step 6: Final answer
    x = 61,348.80

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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.