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Finding the Fourth Proportional to 68,308.65, 94,339.45 and 52,002

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Solution

The fourth proportional to 68,308.65, 94,339.45 and 52,002 is: 71,818.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,308.65 : 94,339.45 = 52,002 : x
  2. Step 2: Convert to fraction form
    68,308.65/94,339.45 = 52,002/x
  3. Step 3: Cross multiply
    68,308.65x = 94,339.45 × 52,002
  4. Step 4: Simplify right side
    68,308.65x = 4,905,840,143.90
  5. Step 5: Solve for x
    x = 4,905,840,143.90/68,308.65
  6. Step 6: Final answer
    x = 71,818.72

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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.