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Finding the Fourth Proportional to 89,774.80, 123,883.68 and 49,486.48

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Solution

The fourth proportional to 89,774.80, 123,883.68 and 49,486.48 is: 68,288.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,774.80 : 123,883.68 = 49,486.48 : x
  2. Step 2: Convert to fraction form
    89,774.80/123,883.68 = 49,486.48/x
  3. Step 3: Cross multiply
    89,774.80x = 123,883.68 × 49,486.48
  4. Step 4: Simplify right side
    89,774.80x = 6,130,567,252.65
  5. Step 5: Solve for x
    x = 6,130,567,252.65/89,774.80
  6. Step 6: Final answer
    x = 68,288.29

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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.