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Finding the Fourth Proportional to 90,469.62, 124,890.93 and 60,305.22

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Solution

The fourth proportional to 90,469.62, 124,890.93 and 60,305.22 is: 83,249.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,469.62 : 124,890.93 = 60,305.22 : x
  2. Step 2: Convert to fraction form
    90,469.62/124,890.93 = 60,305.22/x
  3. Step 3: Cross multiply
    90,469.62x = 124,890.93 × 60,305.22
  4. Step 4: Simplify right side
    90,469.62x = 7,531,575,009.65
  5. Step 5: Solve for x
    x = 7,531,575,009.65/90,469.62
  6. Step 6: Final answer
    x = 83,249.77

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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.