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Finding the Fourth Proportional to 161,275.20, 241,984.80 and 56,169.60

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Solution

The fourth proportional to 161,275.20, 241,984.80 and 56,169.60 is: 84,279.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,275.20 : 241,984.80 = 56,169.60 : x
  2. Step 2: Convert to fraction form
    161,275.20/241,984.80 = 56,169.60/x
  3. Step 3: Cross multiply
    161,275.20x = 241,984.80 × 56,169.60
  4. Step 4: Simplify right side
    161,275.20x = 13,592,189,422.08
  5. Step 5: Solve for x
    x = 13,592,189,422.08/161,275.20
  6. Step 6: Final answer
    x = 84,279.48

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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.