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Finding the Fourth Proportional to 192,785.16, 266,044.86 and 112,259.64

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Solution

The fourth proportional to 192,785.16, 266,044.86 and 112,259.64 is: 154,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,785.16 : 266,044.86 = 112,259.64 : x
  2. Step 2: Convert to fraction form
    192,785.16/266,044.86 = 112,259.64/x
  3. Step 3: Cross multiply
    192,785.16x = 266,044.86 × 112,259.64
  4. Step 4: Simplify right side
    192,785.16x = 29,866,100,207.45
  5. Step 5: Solve for x
    x = 29,866,100,207.45/192,785.16
  6. Step 6: Final answer
    x = 154,919.08

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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.