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Finding the Fourth Proportional to 200,859.75, 277,186.46 and 111,435.75

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Solution

The fourth proportional to 200,859.75, 277,186.46 and 111,435.75 is: 153,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,859.75 : 277,186.46 = 111,435.75 : x
  2. Step 2: Convert to fraction form
    200,859.75/277,186.46 = 111,435.75/x
  3. Step 3: Cross multiply
    200,859.75x = 277,186.46 × 111,435.75
  4. Step 4: Simplify right side
    200,859.75x = 30,888,480,502.77
  5. Step 5: Solve for x
    x = 30,888,480,502.77/200,859.75
  6. Step 6: Final answer
    x = 153,781.34

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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.