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Finding the Fourth Proportional to 170,691, 235,553.42 and 95,239.50

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Solution

The fourth proportional to 170,691, 235,553.42 and 95,239.50 is: 131,430.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,691 : 235,553.42 = 95,239.50 : x
  2. Step 2: Convert to fraction form
    170,691/235,553.42 = 95,239.50/x
  3. Step 3: Cross multiply
    170,691x = 235,553.42 × 95,239.50
  4. Step 4: Simplify right side
    170,691x = 22,433,989,467.89
  5. Step 5: Solve for x
    x = 22,433,989,467.89/170,691
  6. Step 6: Final answer
    x = 131,430.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.