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Finding the Fourth Proportional to 68,702.32, 102,932.46 and 60,173.68

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Solution

The fourth proportional to 68,702.32, 102,932.46 and 60,173.68 is: 90,154.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,702.32 : 102,932.46 = 60,173.68 : x
  2. Step 2: Convert to fraction form
    68,702.32/102,932.46 = 60,173.68/x
  3. Step 3: Cross multiply
    68,702.32x = 102,932.46 × 60,173.68
  4. Step 4: Simplify right side
    68,702.32x = 6,193,824,909.65
  5. Step 5: Solve for x
    x = 6,193,824,909.65/68,702.32
  6. Step 6: Final answer
    x = 90,154.52

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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.