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Finding the Fourth Proportional to 481,480.61, 722,219.13 and 144,519.80

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Solution

The fourth proportional to 481,480.61, 722,219.13 and 144,519.80 is: 216,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,480.61 : 722,219.13 = 144,519.80 : x
  2. Step 2: Convert to fraction form
    481,480.61/722,219.13 = 144,519.80/x
  3. Step 3: Cross multiply
    481,480.61x = 722,219.13 × 144,519.80
  4. Step 4: Simplify right side
    481,480.61x = 104,374,960,612.68
  5. Step 5: Solve for x
    x = 104,374,960,612.68/481,480.61
  6. Step 6: Final answer
    x = 216,779.16

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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.