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Finding the Fourth Proportional to 200,157.99, 276,215.55 and 109,512.65

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Solution

The fourth proportional to 200,157.99, 276,215.55 and 109,512.65 is: 151,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,157.99 : 276,215.55 = 109,512.65 : x
  2. Step 2: Convert to fraction form
    200,157.99/276,215.55 = 109,512.65/x
  3. Step 3: Cross multiply
    200,157.99x = 276,215.55 × 109,512.65
  4. Step 4: Simplify right side
    200,157.99x = 30,249,095,470.63
  5. Step 5: Solve for x
    x = 30,249,095,470.63/200,157.99
  6. Step 6: Final answer
    x = 151,126.10

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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.