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Finding the Fourth Proportional to 106,324.80, 159,616.80 and 53,707.20

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Solution

The fourth proportional to 106,324.80, 159,616.80 and 53,707.20 is: 80,626.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,324.80 : 159,616.80 = 53,707.20 : x
  2. Step 2: Convert to fraction form
    106,324.80/159,616.80 = 53,707.20/x
  3. Step 3: Cross multiply
    106,324.80x = 159,616.80 × 53,707.20
  4. Step 4: Simplify right side
    106,324.80x = 8,572,571,400.96
  5. Step 5: Solve for x
    x = 8,572,571,400.96/106,324.80
  6. Step 6: Final answer
    x = 80,626.26

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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.