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Finding the Fourth Proportional to 357,469.04, 536,203.17 and 91,229.55

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Solution

The fourth proportional to 357,469.04, 536,203.17 and 91,229.55 is: 136,844.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,469.04 : 536,203.17 = 91,229.55 : x
  2. Step 2: Convert to fraction form
    357,469.04/536,203.17 = 91,229.55/x
  3. Step 3: Cross multiply
    357,469.04x = 536,203.17 × 91,229.55
  4. Step 4: Simplify right side
    357,469.04x = 48,917,573,907.67
  5. Step 5: Solve for x
    x = 48,917,573,907.67/357,469.04
  6. Step 6: Final answer
    x = 136,844.23

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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.