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Finding the Fourth Proportional to 111,514.29, 153,787.65 and 73,258.65

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Solution

The fourth proportional to 111,514.29, 153,787.65 and 73,258.65 is: 101,029.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,514.29 : 153,787.65 = 73,258.65 : x
  2. Step 2: Convert to fraction form
    111,514.29/153,787.65 = 73,258.65/x
  3. Step 3: Cross multiply
    111,514.29x = 153,787.65 × 73,258.65
  4. Step 4: Simplify right side
    111,514.29x = 11,266,275,625.67
  5. Step 5: Solve for x
    x = 11,266,275,625.67/111,514.29
  6. Step 6: Final answer
    x = 101,029.88

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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.