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Finding the Fourth Proportional to 200,289.11, 300,336.76 and 73,988.84

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Solution

The fourth proportional to 200,289.11, 300,336.76 and 73,988.84 is: 110,947.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,289.11 : 300,336.76 = 73,988.84 : x
  2. Step 2: Convert to fraction form
    200,289.11/300,336.76 = 73,988.84/x
  3. Step 3: Cross multiply
    200,289.11x = 300,336.76 × 73,988.84
  4. Step 4: Simplify right side
    200,289.11x = 22,221,569,325.09
  5. Step 5: Solve for x
    x = 22,221,569,325.09/200,289.11
  6. Step 6: Final answer
    x = 110,947.47

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1.5x scale

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.