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Finding the Fourth Proportional to 478,850.33, 717,834.35 and 163,087.63

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Solution

The fourth proportional to 478,850.33, 717,834.35 and 163,087.63 is: 244,481.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,850.33 : 717,834.35 = 163,087.63 : x
  2. Step 2: Convert to fraction form
    478,850.33/717,834.35 = 163,087.63/x
  3. Step 3: Cross multiply
    478,850.33x = 717,834.35 × 163,087.63
  4. Step 4: Simplify right side
    478,850.33x = 117,069,901,487.22
  5. Step 5: Solve for x
    x = 117,069,901,487.22/478,850.33
  6. Step 6: Final answer
    x = 244,481.19

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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.