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Finding the Fourth Proportional to 168,955.20, 253,432.80 and 106,900.80

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Solution

The fourth proportional to 168,955.20, 253,432.80 and 106,900.80 is: 160,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,955.20 : 253,432.80 = 106,900.80 : x
  2. Step 2: Convert to fraction form
    168,955.20/253,432.80 = 106,900.80/x
  3. Step 3: Cross multiply
    168,955.20x = 253,432.80 × 106,900.80
  4. Step 4: Simplify right side
    168,955.20x = 27,092,169,066.24
  5. Step 5: Solve for x
    x = 27,092,169,066.24/168,955.20
  6. Step 6: Final answer
    x = 160,351.20

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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.