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Finding the Fourth Proportional to 222,171.02, 306,595.50 and 121,569.02

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Solution

The fourth proportional to 222,171.02, 306,595.50 and 121,569.02 is: 167,764.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,171.02 : 306,595.50 = 121,569.02 : x
  2. Step 2: Convert to fraction form
    222,171.02/306,595.50 = 121,569.02/x
  3. Step 3: Cross multiply
    222,171.02x = 306,595.50 × 121,569.02
  4. Step 4: Simplify right side
    222,171.02x = 37,272,514,471.41
  5. Step 5: Solve for x
    x = 37,272,514,471.41/222,171.02
  6. Step 6: Final answer
    x = 167,764.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.