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Finding the Fourth Proportional to 99,604.80, 137,454.59 and 54,892.80

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Solution

The fourth proportional to 99,604.80, 137,454.59 and 54,892.80 is: 75,752.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,604.80 : 137,454.59 = 54,892.80 : x
  2. Step 2: Convert to fraction form
    99,604.80/137,454.59 = 54,892.80/x
  3. Step 3: Cross multiply
    99,604.80x = 137,454.59 × 54,892.80
  4. Step 4: Simplify right side
    99,604.80x = 7,545,267,043.49
  5. Step 5: Solve for x
    x = 7,545,267,043.49/99,604.80
  6. Step 6: Final answer
    x = 75,752.04

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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.