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Finding the Fourth Proportional to 61,159.62, 84,364.43 and 38,462.61

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Solution

The fourth proportional to 61,159.62, 84,364.43 and 38,462.61 is: 53,055.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,159.62 : 84,364.43 = 38,462.61 : x
  2. Step 2: Convert to fraction form
    61,159.62/84,364.43 = 38,462.61/x
  3. Step 3: Cross multiply
    61,159.62x = 84,364.43 × 38,462.61
  4. Step 4: Simplify right side
    61,159.62x = 3,244,875,976.65
  5. Step 5: Solve for x
    x = 3,244,875,976.65/61,159.62
  6. Step 6: Final answer
    x = 53,055.86

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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.