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Finding the Fourth Proportional to 200,681.70, 276,953.17 and 111,257.70

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Solution

The fourth proportional to 200,681.70, 276,953.17 and 111,257.70 is: 153,542.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,681.70 : 276,953.17 = 111,257.70 : x
  2. Step 2: Convert to fraction form
    200,681.70/276,953.17 = 111,257.70/x
  3. Step 3: Cross multiply
    200,681.70x = 276,953.17 × 111,257.70
  4. Step 4: Simplify right side
    200,681.70x = 30,813,172,701.91
  5. Step 5: Solve for x
    x = 30,813,172,701.91/200,681.70
  6. Step 6: Final answer
    x = 153,542.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.