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Finding the Fourth Proportional to 544,219.90, 816,331.47 and 165,143.68

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Solution

The fourth proportional to 544,219.90, 816,331.47 and 165,143.68 is: 247,716.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,219.90 : 816,331.47 = 165,143.68 : x
  2. Step 2: Convert to fraction form
    544,219.90/816,331.47 = 165,143.68/x
  3. Step 3: Cross multiply
    544,219.90x = 816,331.47 × 165,143.68
  4. Step 4: Simplify right side
    544,219.90x = 134,811,983,055.61
  5. Step 5: Solve for x
    x = 134,811,983,055.61/544,219.90
  6. Step 6: Final answer
    x = 247,716.01

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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.