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Finding the Fourth Proportional to 126,423,786.88, 189,635,754.03 and 35,547,375.88

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Solution

The fourth proportional to 126,423,786.88, 189,635,754.03 and 35,547,375.88 is: 53,321,084.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,423,786.88 : 189,635,754.03 = 35,547,375.88 : x
  2. Step 2: Convert to fraction form
    126,423,786.88/189,635,754.03 = 35,547,375.88/x
  3. Step 3: Cross multiply
    126,423,786.88x = 189,635,754.03 × 35,547,375.88
  4. Step 4: Simplify right side
    126,423,786.88x = 6,741,053,428,791,635
  5. Step 5: Solve for x
    x = 6,741,053,428,791,635/126,423,786.88
  6. Step 6: Final answer
    x = 53,321,084.55

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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.