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Finding the Fourth Proportional to 170,200.80, 255,301.20 and 45,541.80

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Solution

The fourth proportional to 170,200.80, 255,301.20 and 45,541.80 is: 68,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,200.80 : 255,301.20 = 45,541.80 : x
  2. Step 2: Convert to fraction form
    170,200.80/255,301.20 = 45,541.80/x
  3. Step 3: Cross multiply
    170,200.80x = 255,301.20 × 45,541.80
  4. Step 4: Simplify right side
    170,200.80x = 11,626,876,190.16
  5. Step 5: Solve for x
    x = 11,626,876,190.16/170,200.80
  6. Step 6: Final answer
    x = 68,312.70

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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.