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Finding the Fourth Proportional to 99,891.34, 149,787.46 and 36,708.91

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Solution

The fourth proportional to 99,891.34, 149,787.46 and 36,708.91 is: 55,045.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,891.34 : 149,787.46 = 36,708.91 : x
  2. Step 2: Convert to fraction form
    99,891.34/149,787.46 = 36,708.91/x
  3. Step 3: Cross multiply
    99,891.34x = 149,787.46 × 36,708.91
  4. Step 4: Simplify right side
    99,891.34x = 5,498,534,388.27
  5. Step 5: Solve for x
    x = 5,498,534,388.27/99,891.34
  6. Step 6: Final answer
    x = 55,045.16

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1.5x scale

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.