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Finding the Fourth Proportional to 268,530.50, 370,574.80 and 147,672.62

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Solution

The fourth proportional to 268,530.50, 370,574.80 and 147,672.62 is: 203,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,530.50 : 370,574.80 = 147,672.62 : x
  2. Step 2: Convert to fraction form
    268,530.50/370,574.80 = 147,672.62/x
  3. Step 3: Cross multiply
    268,530.50x = 370,574.80 × 147,672.62
  4. Step 4: Simplify right side
    268,530.50x = 54,723,751,621.98
  5. Step 5: Solve for x
    x = 54,723,751,621.98/268,530.50
  6. Step 6: Final answer
    x = 203,789.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.