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Finding the Fourth Proportional to 170,830.67, 256,162.17 and 99,771.17

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Solution

The fourth proportional to 170,830.67, 256,162.17 and 99,771.17 is: 149,607.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,830.67 : 256,162.17 = 99,771.17 : x
  2. Step 2: Convert to fraction form
    170,830.67/256,162.17 = 99,771.17/x
  3. Step 3: Cross multiply
    170,830.67x = 256,162.17 × 99,771.17
  4. Step 4: Simplify right side
    170,830.67x = 25,557,598,943.82
  5. Step 5: Solve for x
    x = 25,557,598,943.82/170,830.67
  6. Step 6: Final answer
    x = 149,607.79

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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.