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Finding the Fourth Proportional to 86,672.75, 130,009.16 and 24,343.25

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Solution

The fourth proportional to 86,672.75, 130,009.16 and 24,343.25 is: 36,514.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,672.75 : 130,009.16 = 24,343.25 : x
  2. Step 2: Convert to fraction form
    86,672.75/130,009.16 = 24,343.25/x
  3. Step 3: Cross multiply
    86,672.75x = 130,009.16 × 24,343.25
  4. Step 4: Simplify right side
    86,672.75x = 3,164,845,362.45
  5. Step 5: Solve for x
    x = 3,164,845,362.45/86,672.75
  6. Step 6: Final answer
    x = 36,514.88

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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.