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Finding the Fourth Proportional to 107,993.10, 148,898.09 and 88,805.82

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Solution

The fourth proportional to 107,993.10, 148,898.09 and 88,805.82 is: 122,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,993.10 : 148,898.09 = 88,805.82 : x
  2. Step 2: Convert to fraction form
    107,993.10/148,898.09 = 88,805.82/x
  3. Step 3: Cross multiply
    107,993.10x = 148,898.09 × 88,805.82
  4. Step 4: Simplify right side
    107,993.10x = 13,223,016,534.85
  5. Step 5: Solve for x
    x = 13,223,016,534.85/107,993.10
  6. Step 6: Final answer
    x = 122,443.16

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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.