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Finding the Fourth Proportional to 61,206.68, 91,723.82 and 48,671.06

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Solution

The fourth proportional to 61,206.68, 91,723.82 and 48,671.06 is: 72,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,206.68 : 91,723.82 = 48,671.06 : x
  2. Step 2: Convert to fraction form
    61,206.68/91,723.82 = 48,671.06/x
  3. Step 3: Cross multiply
    61,206.68x = 91,723.82 × 48,671.06
  4. Step 4: Simplify right side
    61,206.68x = 4,464,295,546.65
  5. Step 5: Solve for x
    x = 4,464,295,546.65/61,206.68
  6. Step 6: Final answer
    x = 72,938.04

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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.