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Finding the Fourth Proportional to 170,766.70, 256,150.05 and 168,142.30

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Solution

The fourth proportional to 170,766.70, 256,150.05 and 168,142.30 is: 252,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,766.70 : 256,150.05 = 168,142.30 : x
  2. Step 2: Convert to fraction form
    170,766.70/256,150.05 = 168,142.30/x
  3. Step 3: Cross multiply
    170,766.70x = 256,150.05 × 168,142.30
  4. Step 4: Simplify right side
    170,766.70x = 43,069,658,552.12
  5. Step 5: Solve for x
    x = 43,069,658,552.12/170,766.70
  6. Step 6: Final answer
    x = 252,213.45

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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.