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Finding the Fourth Proportional to 71,809.97, 99,102.08 and 41,604.80

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Solution

The fourth proportional to 71,809.97, 99,102.08 and 41,604.80 is: 57,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,809.97 : 99,102.08 = 41,604.80 : x
  2. Step 2: Convert to fraction form
    71,809.97/99,102.08 = 41,604.80/x
  3. Step 3: Cross multiply
    71,809.97x = 99,102.08 × 41,604.80
  4. Step 4: Simplify right side
    71,809.97x = 4,123,121,826.49
  5. Step 5: Solve for x
    x = 4,123,121,826.49/71,809.97
  6. Step 6: Final answer
    x = 57,417.13

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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.