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Finding the Fourth Proportional to 170,771.52, 256,231.20 and 70,953.60

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Solution

The fourth proportional to 170,771.52, 256,231.20 and 70,953.60 is: 106,461.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,771.52 : 256,231.20 = 70,953.60 : x
  2. Step 2: Convert to fraction form
    170,771.52/256,231.20 = 70,953.60/x
  3. Step 3: Cross multiply
    170,771.52x = 256,231.20 × 70,953.60
  4. Step 4: Simplify right side
    170,771.52x = 18,180,526,072.32
  5. Step 5: Solve for x
    x = 18,180,526,072.32/170,771.52
  6. Step 6: Final answer
    x = 106,461.11

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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.