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Finding the Fourth Proportional to 144,571.56, 216,986.94 and 121,026.48

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Solution

The fourth proportional to 144,571.56, 216,986.94 and 121,026.48 is: 181,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,571.56 : 216,986.94 = 121,026.48 : x
  2. Step 2: Convert to fraction form
    144,571.56/216,986.94 = 121,026.48/x
  3. Step 3: Cross multiply
    144,571.56x = 216,986.94 × 121,026.48
  4. Step 4: Simplify right side
    144,571.56x = 26,261,165,554.17
  5. Step 5: Solve for x
    x = 26,261,165,554.17/144,571.56
  6. Step 6: Final answer
    x = 181,648.21

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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.