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Finding the Fourth Proportional to 170,792.18, 256,344.53 and 86,610.44

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Solution

The fourth proportional to 170,792.18, 256,344.53 and 86,610.44 is: 129,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,792.18 : 256,344.53 = 86,610.44 : x
  2. Step 2: Convert to fraction form
    170,792.18/256,344.53 = 86,610.44/x
  3. Step 3: Cross multiply
    170,792.18x = 256,344.53 × 86,610.44
  4. Step 4: Simplify right side
    170,792.18x = 22,202,112,101.84
  5. Step 5: Solve for x
    x = 22,202,112,101.84/170,792.18
  6. Step 6: Final answer
    x = 129,994.90

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1.5x scale

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.