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Finding the Fourth Proportional to 310,286.40, 465,429.60 and 110,613.30

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Solution

The fourth proportional to 310,286.40, 465,429.60 and 110,613.30 is: 165,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,286.40 : 465,429.60 = 110,613.30 : x
  2. Step 2: Convert to fraction form
    310,286.40/465,429.60 = 110,613.30/x
  3. Step 3: Cross multiply
    310,286.40x = 465,429.60 × 110,613.30
  4. Step 4: Simplify right side
    310,286.40x = 51,482,703,973.68
  5. Step 5: Solve for x
    x = 51,482,703,973.68/310,286.40
  6. Step 6: Final answer
    x = 165,919.95

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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.