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Finding the Fourth Proportional to 194,713.80, 292,070.70 and 132,505.80

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Solution

The fourth proportional to 194,713.80, 292,070.70 and 132,505.80 is: 198,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,713.80 : 292,070.70 = 132,505.80 : x
  2. Step 2: Convert to fraction form
    194,713.80/292,070.70 = 132,505.80/x
  3. Step 3: Cross multiply
    194,713.80x = 292,070.70 × 132,505.80
  4. Step 4: Simplify right side
    194,713.80x = 38,701,061,760.06
  5. Step 5: Solve for x
    x = 38,701,061,760.06/194,713.80
  6. Step 6: Final answer
    x = 198,758.70

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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.