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Finding the Fourth Proportional to 68,065.92, 102,168 and 48,366.72

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Solution

The fourth proportional to 68,065.92, 102,168 and 48,366.72 is: 72,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,065.92 : 102,168 = 48,366.72 : x
  2. Step 2: Convert to fraction form
    68,065.92/102,168 = 48,366.72/x
  3. Step 3: Cross multiply
    68,065.92x = 102,168 × 48,366.72
  4. Step 4: Simplify right side
    68,065.92x = 4,941,531,048.96
  5. Step 5: Solve for x
    x = 4,941,531,048.96/68,065.92
  6. Step 6: Final answer
    x = 72,599.20

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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.