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Finding the Fourth Proportional to 162,959.20, 244,147.20 and 139,631.20

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Solution

The fourth proportional to 162,959.20, 244,147.20 and 139,631.20 is: 209,196.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,959.20 : 244,147.20 = 139,631.20 : x
  2. Step 2: Convert to fraction form
    162,959.20/244,147.20 = 139,631.20/x
  3. Step 3: Cross multiply
    162,959.20x = 244,147.20 × 139,631.20
  4. Step 4: Simplify right side
    162,959.20x = 34,090,566,512.64
  5. Step 5: Solve for x
    x = 34,090,566,512.64/162,959.20
  6. Step 6: Final answer
    x = 209,196.94

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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.