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Finding the Fourth Proportional to 111,572.16, 167,329.08 and 52,396.80

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Solution

The fourth proportional to 111,572.16, 167,329.08 and 52,396.80 is: 78,581.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,572.16 : 167,329.08 = 52,396.80 : x
  2. Step 2: Convert to fraction form
    111,572.16/167,329.08 = 52,396.80/x
  3. Step 3: Cross multiply
    111,572.16x = 167,329.08 × 52,396.80
  4. Step 4: Simplify right side
    111,572.16x = 8,767,508,338.94
  5. Step 5: Solve for x
    x = 8,767,508,338.94/111,572.16
  6. Step 6: Final answer
    x = 78,581.51

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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.