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Finding the Fourth Proportional to 533,647.31, 800,355.78 and 168,937.70

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Solution

The fourth proportional to 533,647.31, 800,355.78 and 168,937.70 is: 253,370.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,647.31 : 800,355.78 = 168,937.70 : x
  2. Step 2: Convert to fraction form
    533,647.31/800,355.78 = 168,937.70/x
  3. Step 3: Cross multiply
    533,647.31x = 800,355.78 × 168,937.70
  4. Step 4: Simplify right side
    533,647.31x = 135,210,260,653.13
  5. Step 5: Solve for x
    x = 135,210,260,653.13/533,647.31
  6. Step 6: Final answer
    x = 253,370.08

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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.