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Finding the Fourth Proportional to 109,258.92, 150,780.15 and 61,514.01

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Solution

The fourth proportional to 109,258.92, 150,780.15 and 61,514.01 is: 84,890.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,258.92 : 150,780.15 = 61,514.01 : x
  2. Step 2: Convert to fraction form
    109,258.92/150,780.15 = 61,514.01/x
  3. Step 3: Cross multiply
    109,258.92x = 150,780.15 × 61,514.01
  4. Step 4: Simplify right side
    109,258.92x = 9,275,091,654.90
  5. Step 5: Solve for x
    x = 9,275,091,654.90/109,258.92
  6. Step 6: Final answer
    x = 84,890.93

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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.