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Finding the Fourth Proportional to 230,087.90, 344,926.65 and 89,813.90

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Solution

The fourth proportional to 230,087.90, 344,926.65 and 89,813.90 is: 134,640.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,087.90 : 344,926.65 = 89,813.90 : x
  2. Step 2: Convert to fraction form
    230,087.90/344,926.65 = 89,813.90/x
  3. Step 3: Cross multiply
    230,087.90x = 344,926.65 × 89,813.90
  4. Step 4: Simplify right side
    230,087.90x = 30,979,207,650.44
  5. Step 5: Solve for x
    x = 30,979,207,650.44/230,087.90
  6. Step 6: Final answer
    x = 134,640.75

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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.