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Finding the Fourth Proportional to 144,572.56, 216,988.44 and 121,027.48

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Solution

The fourth proportional to 144,572.56, 216,988.44 and 121,027.48 is: 181,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,572.56 : 216,988.44 = 121,027.48 : x
  2. Step 2: Convert to fraction form
    144,572.56/216,988.44 = 121,027.48/x
  3. Step 3: Cross multiply
    144,572.56x = 216,988.44 × 121,027.48
  4. Step 4: Simplify right side
    144,572.56x = 26,261,564,082.33
  5. Step 5: Solve for x
    x = 26,261,564,082.33/144,572.56
  6. Step 6: Final answer
    x = 181,649.71

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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.