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Finding the Fourth Proportional to 169,627.80, 254,441.70 and 64,441.20

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Solution

The fourth proportional to 169,627.80, 254,441.70 and 64,441.20 is: 96,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,627.80 : 254,441.70 = 64,441.20 : x
  2. Step 2: Convert to fraction form
    169,627.80/254,441.70 = 64,441.20/x
  3. Step 3: Cross multiply
    169,627.80x = 254,441.70 × 64,441.20
  4. Step 4: Simplify right side
    169,627.80x = 16,396,528,478.04
  5. Step 5: Solve for x
    x = 16,396,528,478.04/169,627.80
  6. Step 6: Final answer
    x = 96,661.80

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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.