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Finding the Fourth Proportional to 492,069.40, 738,104.10 and 159,645.40

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Solution

The fourth proportional to 492,069.40, 738,104.10 and 159,645.40 is: 239,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,069.40 : 738,104.10 = 159,645.40 : x
  2. Step 2: Convert to fraction form
    492,069.40/738,104.10 = 159,645.40/x
  3. Step 3: Cross multiply
    492,069.40x = 738,104.10 × 159,645.40
  4. Step 4: Simplify right side
    492,069.40x = 117,834,924,286.14
  5. Step 5: Solve for x
    x = 117,834,924,286.14/492,069.40
  6. Step 6: Final answer
    x = 239,468.10

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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.