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Finding the Fourth Proportional to 200,366.55, 300,072.78 and 115,948.76

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Solution

The fourth proportional to 200,366.55, 300,072.78 and 115,948.76 is: 173,647.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,366.55 : 300,072.78 = 115,948.76 : x
  2. Step 2: Convert to fraction form
    200,366.55/300,072.78 = 115,948.76/x
  3. Step 3: Cross multiply
    200,366.55x = 300,072.78 × 115,948.76
  4. Step 4: Simplify right side
    200,366.55x = 34,793,065,250.39
  5. Step 5: Solve for x
    x = 34,793,065,250.39/200,366.55
  6. Step 6: Final answer
    x = 173,647.07

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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.