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Finding the Fourth Proportional to 235,042.05, 352,703.13 and 85,294.02

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Solution

The fourth proportional to 235,042.05, 352,703.13 and 85,294.02 is: 127,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,042.05 : 352,703.13 = 85,294.02 : x
  2. Step 2: Convert to fraction form
    235,042.05/352,703.13 = 85,294.02/x
  3. Step 3: Cross multiply
    235,042.05x = 352,703.13 × 85,294.02
  4. Step 4: Simplify right side
    235,042.05x = 30,083,467,824.28
  5. Step 5: Solve for x
    x = 30,083,467,824.28/235,042.05
  6. Step 6: Final answer
    x = 127,991.85

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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.