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Finding the Fourth Proportional to 200,161.69, 276,223.33 and 115,278.95

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Solution

The fourth proportional to 200,161.69, 276,223.33 and 115,278.95 is: 159,085.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,161.69 : 276,223.33 = 115,278.95 : x
  2. Step 2: Convert to fraction form
    200,161.69/276,223.33 = 115,278.95/x
  3. Step 3: Cross multiply
    200,161.69x = 276,223.33 × 115,278.95
  4. Step 4: Simplify right side
    200,161.69x = 31,842,736,282.56
  5. Step 5: Solve for x
    x = 31,842,736,282.56/200,161.69
  6. Step 6: Final answer
    x = 159,085.07

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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.