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Finding the Fourth Proportional to 170,236.54, 234,967.80 and 98,605

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Solution

The fourth proportional to 170,236.54, 234,967.80 and 98,605 is: 136,098.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,236.54 : 234,967.80 = 98,605 : x
  2. Step 2: Convert to fraction form
    170,236.54/234,967.80 = 98,605/x
  3. Step 3: Cross multiply
    170,236.54x = 234,967.80 × 98,605
  4. Step 4: Simplify right side
    170,236.54x = 23,168,999,919
  5. Step 5: Solve for x
    x = 23,168,999,919/170,236.54
  6. Step 6: Final answer
    x = 136,098.87

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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.