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Finding the Fourth Proportional to 129,601.83, 193,963.68 and 79,713.57

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Solution

The fourth proportional to 129,601.83, 193,963.68 and 79,713.57 is: 119,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,601.83 : 193,963.68 = 79,713.57 : x
  2. Step 2: Convert to fraction form
    129,601.83/193,963.68 = 79,713.57/x
  3. Step 3: Cross multiply
    129,601.83x = 193,963.68 × 79,713.57
  4. Step 4: Simplify right side
    129,601.83x = 15,461,537,383.14
  5. Step 5: Solve for x
    x = 15,461,537,383.14/129,601.83
  6. Step 6: Final answer
    x = 119,300.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.