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Finding the Fourth Proportional to 259,162.28, 388,741.86 and 67,036.71

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Solution

The fourth proportional to 259,162.28, 388,741.86 and 67,036.71 is: 100,554.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,162.28 : 388,741.86 = 67,036.71 : x
  2. Step 2: Convert to fraction form
    259,162.28/388,741.86 = 67,036.71/x
  3. Step 3: Cross multiply
    259,162.28x = 388,741.86 × 67,036.71
  4. Step 4: Simplify right side
    259,162.28x = 26,059,975,333.68
  5. Step 5: Solve for x
    x = 26,059,975,333.68/259,162.28
  6. Step 6: Final answer
    x = 100,554.66

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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.