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Finding the Fourth Proportional to 347,275.20, 520,912.80 and 110,641.80

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Solution

The fourth proportional to 347,275.20, 520,912.80 and 110,641.80 is: 165,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,275.20 : 520,912.80 = 110,641.80 : x
  2. Step 2: Convert to fraction form
    347,275.20/520,912.80 = 110,641.80/x
  3. Step 3: Cross multiply
    347,275.20x = 520,912.80 × 110,641.80
  4. Step 4: Simplify right side
    347,275.20x = 57,634,729,835.04
  5. Step 5: Solve for x
    x = 57,634,729,835.04/347,275.20
  6. Step 6: Final answer
    x = 165,962.70

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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.