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Finding the Fourth Proportional to 194,959.60, 292,212.60 and 89,789.20

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Solution

The fourth proportional to 194,959.60, 292,212.60 and 89,789.20 is: 134,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,959.60 : 292,212.60 = 89,789.20 : x
  2. Step 2: Convert to fraction form
    194,959.60/292,212.60 = 89,789.20/x
  3. Step 3: Cross multiply
    194,959.60x = 292,212.60 × 89,789.20
  4. Step 4: Simplify right side
    194,959.60x = 26,237,535,583.92
  5. Step 5: Solve for x
    x = 26,237,535,583.92/194,959.60
  6. Step 6: Final answer
    x = 134,579.35

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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.