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Finding the Fourth Proportional to 170,883.40, 256,325.10 and 71,010.40

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Solution

The fourth proportional to 170,883.40, 256,325.10 and 71,010.40 is: 106,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,883.40 : 256,325.10 = 71,010.40 : x
  2. Step 2: Convert to fraction form
    170,883.40/256,325.10 = 71,010.40/x
  3. Step 3: Cross multiply
    170,883.40x = 256,325.10 × 71,010.40
  4. Step 4: Simplify right side
    170,883.40x = 18,201,747,881.04
  5. Step 5: Solve for x
    x = 18,201,747,881.04/170,883.40
  6. Step 6: Final answer
    x = 106,515.60

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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.