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Finding the Fourth Proportional to 68,656.52, 94,723.98 and 38,437.40

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Solution

The fourth proportional to 68,656.52, 94,723.98 and 38,437.40 is: 53,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,656.52 : 94,723.98 = 38,437.40 : x
  2. Step 2: Convert to fraction form
    68,656.52/94,723.98 = 38,437.40/x
  3. Step 3: Cross multiply
    68,656.52x = 94,723.98 × 38,437.40
  4. Step 4: Simplify right side
    68,656.52x = 3,640,943,508.85
  5. Step 5: Solve for x
    x = 3,640,943,508.85/68,656.52
  6. Step 6: Final answer
    x = 53,031.29

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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.