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Finding the Fourth Proportional to 367,160.81, 550,616.45 and 127,218.71

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Solution

The fourth proportional to 367,160.81, 550,616.45 and 127,218.71 is: 190,784.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,160.81 : 550,616.45 = 127,218.71 : x
  2. Step 2: Convert to fraction form
    367,160.81/550,616.45 = 127,218.71/x
  3. Step 3: Cross multiply
    367,160.81x = 550,616.45 × 127,218.71
  4. Step 4: Simplify right side
    367,160.81x = 70,048,715,214.23
  5. Step 5: Solve for x
    x = 70,048,715,214.23/367,160.81
  6. Step 6: Final answer
    x = 190,784.84

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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.