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Finding the Fourth Proportional to 188,354.64, 259,931.16 and 103,473.48

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Solution

The fourth proportional to 188,354.64, 259,931.16 and 103,473.48 is: 142,794.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,354.64 : 259,931.16 = 103,473.48 : x
  2. Step 2: Convert to fraction form
    188,354.64/259,931.16 = 103,473.48/x
  3. Step 3: Cross multiply
    188,354.64x = 259,931.16 × 103,473.48
  4. Step 4: Simplify right side
    188,354.64x = 26,895,981,685.64
  5. Step 5: Solve for x
    x = 26,895,981,685.64/188,354.64
  6. Step 6: Final answer
    x = 142,794.37

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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.