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Finding the Fourth Proportional to 99,889.97, 149,785.40 and 36,707.54

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Solution

The fourth proportional to 99,889.97, 149,785.40 and 36,707.54 is: 55,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,889.97 : 149,785.40 = 36,707.54 : x
  2. Step 2: Convert to fraction form
    99,889.97/149,785.40 = 36,707.54/x
  3. Step 3: Cross multiply
    99,889.97x = 149,785.40 × 36,707.54
  4. Step 4: Simplify right side
    99,889.97x = 5,498,252,904.76
  5. Step 5: Solve for x
    x = 5,498,252,904.76/99,889.97
  6. Step 6: Final answer
    x = 55,043.10

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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.