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Finding the Fourth Proportional to 68,156.10, 102,383.19 and 48,560.58

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Solution

The fourth proportional to 68,156.10, 102,383.19 and 48,560.58 is: 72,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,156.10 : 102,383.19 = 48,560.58 : x
  2. Step 2: Convert to fraction form
    68,156.10/102,383.19 = 48,560.58/x
  3. Step 3: Cross multiply
    68,156.10x = 102,383.19 × 48,560.58
  4. Step 4: Simplify right side
    68,156.10x = 4,971,787,088.65
  5. Step 5: Solve for x
    x = 4,971,787,088.65/68,156.10
  6. Step 6: Final answer
    x = 72,947.06

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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.