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Finding the Fourth Proportional to 86,648.68, 129,924.42 and 27,473.32

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Solution

The fourth proportional to 86,648.68, 129,924.42 and 27,473.32 is: 41,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,648.68 : 129,924.42 = 27,473.32 : x
  2. Step 2: Convert to fraction form
    86,648.68/129,924.42 = 27,473.32/x
  3. Step 3: Cross multiply
    86,648.68x = 129,924.42 × 27,473.32
  4. Step 4: Simplify right side
    86,648.68x = 3,569,455,166.47
  5. Step 5: Solve for x
    x = 3,569,455,166.47/86,648.68
  6. Step 6: Final answer
    x = 41,194.57

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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.