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Finding the Fourth Proportional to 357,469.34, 536,203.55 and 91,229.87

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Solution

The fourth proportional to 357,469.34, 536,203.55 and 91,229.87 is: 136,844.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,469.34 : 536,203.55 = 91,229.87 : x
  2. Step 2: Convert to fraction form
    357,469.34/536,203.55 = 91,229.87/x
  3. Step 3: Cross multiply
    357,469.34x = 536,203.55 × 91,229.87
  4. Step 4: Simplify right side
    357,469.34x = 48,917,777,479.02
  5. Step 5: Solve for x
    x = 48,917,777,479.02/357,469.34
  6. Step 6: Final answer
    x = 136,844.68

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1.5x scale

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.