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Finding the Fourth Proportional to 86,044.38, 129,053.22 and 43,955.56

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Solution

The fourth proportional to 86,044.38, 129,053.22 and 43,955.56 is: 65,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,044.38 : 129,053.22 = 43,955.56 : x
  2. Step 2: Convert to fraction form
    86,044.38/129,053.22 = 43,955.56/x
  3. Step 3: Cross multiply
    86,044.38x = 129,053.22 × 43,955.56
  4. Step 4: Simplify right side
    86,044.38x = 5,672,606,554.90
  5. Step 5: Solve for x
    x = 5,672,606,554.90/86,044.38
  6. Step 6: Final answer
    x = 65,926.52

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1.5x scale

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.