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Finding the Fourth Proportional to 74,350.80, 111,526.20 and 52,189.20

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Solution

The fourth proportional to 74,350.80, 111,526.20 and 52,189.20 is: 78,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,350.80 : 111,526.20 = 52,189.20 : x
  2. Step 2: Convert to fraction form
    74,350.80/111,526.20 = 52,189.20/x
  3. Step 3: Cross multiply
    74,350.80x = 111,526.20 × 52,189.20
  4. Step 4: Simplify right side
    74,350.80x = 5,820,463,157.04
  5. Step 5: Solve for x
    x = 5,820,463,157.04/74,350.80
  6. Step 6: Final answer
    x = 78,283.80

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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.