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Finding the Fourth Proportional to 167,206.97, 230,745.00 and 99,279.78

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Solution

The fourth proportional to 167,206.97, 230,745.00 and 99,279.78 is: 137,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,206.97 : 230,745.00 = 99,279.78 : x
  2. Step 2: Convert to fraction form
    167,206.97/230,745.00 = 99,279.78/x
  3. Step 3: Cross multiply
    167,206.97x = 230,745.00 × 99,279.78
  4. Step 4: Simplify right side
    167,206.97x = 22,908,312,343.11
  5. Step 5: Solve for x
    x = 22,908,312,343.11/167,206.97
  6. Step 6: Final answer
    x = 137,005.72

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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.