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Finding the Fourth Proportional to 207,794.81, 286,758.15 and 112,301.28

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Solution

The fourth proportional to 207,794.81, 286,758.15 and 112,301.28 is: 154,976.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,794.81 : 286,758.15 = 112,301.28 : x
  2. Step 2: Convert to fraction form
    207,794.81/286,758.15 = 112,301.28/x
  3. Step 3: Cross multiply
    207,794.81x = 286,758.15 × 112,301.28
  4. Step 4: Simplify right side
    207,794.81x = 32,203,307,295.43
  5. Step 5: Solve for x
    x = 32,203,307,295.43/207,794.81
  6. Step 6: Final answer
    x = 154,976.48

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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.