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Finding the Fourth Proportional to 347,074.80, 520,266.60 and 159,759.60

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Solution

The fourth proportional to 347,074.80, 520,266.60 and 159,759.60 is: 239,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,074.80 : 520,266.60 = 159,759.60 : x
  2. Step 2: Convert to fraction form
    347,074.80/520,266.60 = 159,759.60/x
  3. Step 3: Cross multiply
    347,074.80x = 520,266.60 × 159,759.60
  4. Step 4: Simplify right side
    347,074.80x = 83,117,583,909.36
  5. Step 5: Solve for x
    x = 83,117,583,909.36/347,074.80
  6. Step 6: Final answer
    x = 239,480.32

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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.