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Finding the Fourth Proportional to 68,486,978.82, 94,517,979.18 and 37,553,126.88

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Solution

The fourth proportional to 68,486,978.82, 94,517,979.18 and 37,553,126.88 is: 51,826,576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,486,978.82 : 94,517,979.18 = 37,553,126.88 : x
  2. Step 2: Convert to fraction form
    68,486,978.82/94,517,979.18 = 37,553,126.88/x
  3. Step 3: Cross multiply
    68,486,978.82x = 94,517,979.18 × 37,553,126.88
  4. Step 4: Simplify right side
    68,486,978.82x = 3,549,445,664,587,739
  5. Step 5: Solve for x
    x = 3,549,445,664,587,739/68,486,978.82
  6. Step 6: Final answer
    x = 51,826,576.76

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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.