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Finding the Fourth Proportional to 144,104, 216,156.96 and 45,608

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Solution

The fourth proportional to 144,104, 216,156.96 and 45,608 is: 68,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,104 : 216,156.96 = 45,608 : x
  2. Step 2: Convert to fraction form
    144,104/216,156.96 = 45,608/x
  3. Step 3: Cross multiply
    144,104x = 216,156.96 × 45,608
  4. Step 4: Simplify right side
    144,104x = 9,858,486,631.68
  5. Step 5: Solve for x
    x = 9,858,486,631.68/144,104
  6. Step 6: Final answer
    x = 68,412.30

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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.