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Finding the Fourth Proportional to 158,758.75, 219,079.14 and 94,230.79

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Solution

The fourth proportional to 158,758.75, 219,079.14 and 94,230.79 is: 130,033.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,758.75 : 219,079.14 = 94,230.79 : x
  2. Step 2: Convert to fraction form
    158,758.75/219,079.14 = 94,230.79/x
  3. Step 3: Cross multiply
    158,758.75x = 219,079.14 × 94,230.79
  4. Step 4: Simplify right side
    158,758.75x = 20,644,000,434.72
  5. Step 5: Solve for x
    x = 20,644,000,434.72/158,758.75
  6. Step 6: Final answer
    x = 130,033.78

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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.