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Finding the Fourth Proportional to 144,809.24, 216,918.24 and 74,540.96

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Solution

The fourth proportional to 144,809.24, 216,918.24 and 74,540.96 is: 111,659.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,809.24 : 216,918.24 = 74,540.96 : x
  2. Step 2: Convert to fraction form
    144,809.24/216,918.24 = 74,540.96/x
  3. Step 3: Cross multiply
    144,809.24x = 216,918.24 × 74,540.96
  4. Step 4: Simplify right side
    144,809.24x = 16,169,293,851.11
  5. Step 5: Solve for x
    x = 16,169,293,851.11/144,809.24
  6. Step 6: Final answer
    x = 111,659.27

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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.