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Finding the Fourth Proportional to 358,400.90, 537,694.44 and 133,763.03

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Solution

The fourth proportional to 358,400.90, 537,694.44 and 133,763.03 is: 200,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,400.90 : 537,694.44 = 133,763.03 : x
  2. Step 2: Convert to fraction form
    358,400.90/537,694.44 = 133,763.03/x
  3. Step 3: Cross multiply
    358,400.90x = 537,694.44 × 133,763.03
  4. Step 4: Simplify right side
    358,400.90x = 71,923,636,334.82
  5. Step 5: Solve for x
    x = 71,923,636,334.82/358,400.90
  6. Step 6: Final answer
    x = 200,679.28

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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.