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Finding the Fourth Proportional to 129,330.70, 193,996.13 and 35,836.45

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Solution

The fourth proportional to 129,330.70, 193,996.13 and 35,836.45 is: 53,754.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,330.70 : 193,996.13 = 35,836.45 : x
  2. Step 2: Convert to fraction form
    129,330.70/193,996.13 = 35,836.45/x
  3. Step 3: Cross multiply
    129,330.70x = 193,996.13 × 35,836.45
  4. Step 4: Simplify right side
    129,330.70x = 6,952,132,612.94
  5. Step 5: Solve for x
    x = 6,952,132,612.94/129,330.70
  6. Step 6: Final answer
    x = 53,754.70

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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.