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Finding the Fourth Proportional to 133,151.80, 199,841.10 and 54,322.60

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Solution

The fourth proportional to 133,151.80, 199,841.10 and 54,322.60 is: 81,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,151.80 : 199,841.10 = 54,322.60 : x
  2. Step 2: Convert to fraction form
    133,151.80/199,841.10 = 54,322.60/x
  3. Step 3: Cross multiply
    133,151.80x = 199,841.10 × 54,322.60
  4. Step 4: Simplify right side
    133,151.80x = 10,855,888,138.86
  5. Step 5: Solve for x
    x = 10,855,888,138.86/133,151.80
  6. Step 6: Final answer
    x = 81,530.16

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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.