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Finding the Fourth Proportional to 170,605.78, 255,799.16 and 70,834.84

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Solution

The fourth proportional to 170,605.78, 255,799.16 and 70,834.84 is: 106,206.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,605.78 : 255,799.16 = 70,834.84 : x
  2. Step 2: Convert to fraction form
    170,605.78/255,799.16 = 70,834.84/x
  3. Step 3: Cross multiply
    170,605.78x = 255,799.16 × 70,834.84
  4. Step 4: Simplify right side
    170,605.78x = 18,119,492,570.73
  5. Step 5: Solve for x
    x = 18,119,492,570.73/170,605.78
  6. Step 6: Final answer
    x = 106,206.79

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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.