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Finding the Fourth Proportional to 133,049.70, 199,574.55 and 39,543.30

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Solution

The fourth proportional to 133,049.70, 199,574.55 and 39,543.30 is: 59,314.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,049.70 : 199,574.55 = 39,543.30 : x
  2. Step 2: Convert to fraction form
    133,049.70/199,574.55 = 39,543.30/x
  3. Step 3: Cross multiply
    133,049.70x = 199,574.55 × 39,543.30
  4. Step 4: Simplify right side
    133,049.70x = 7,891,836,303.02
  5. Step 5: Solve for x
    x = 7,891,836,303.02/133,049.70
  6. Step 6: Final answer
    x = 59,314.95

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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.