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Finding the Fourth Proportional to 86,295.33, 129,448.59 and 27,133.29

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Solution

The fourth proportional to 86,295.33, 129,448.59 and 27,133.29 is: 40,701.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,295.33 : 129,448.59 = 27,133.29 : x
  2. Step 2: Convert to fraction form
    86,295.33/129,448.59 = 27,133.29/x
  3. Step 3: Cross multiply
    86,295.33x = 129,448.59 × 27,133.29
  4. Step 4: Simplify right side
    86,295.33x = 3,512,366,132.56
  5. Step 5: Solve for x
    x = 3,512,366,132.56/86,295.33
  6. Step 6: Final answer
    x = 40,701.69

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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.