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Finding the Fourth Proportional to 199,370.76, 299,106.52 and 66,251.64

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Solution

The fourth proportional to 199,370.76, 299,106.52 and 66,251.64 is: 99,394.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,370.76 : 299,106.52 = 66,251.64 : x
  2. Step 2: Convert to fraction form
    199,370.76/299,106.52 = 66,251.64/x
  3. Step 3: Cross multiply
    199,370.76x = 299,106.52 × 66,251.64
  4. Step 4: Simplify right side
    199,370.76x = 19,816,297,484.69
  5. Step 5: Solve for x
    x = 19,816,297,484.69/199,370.76
  6. Step 6: Final answer
    x = 99,394.20

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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.