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Finding the Fourth Proportional to 188,894.16, 260,673.28 and 104,011.20

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Solution

The fourth proportional to 188,894.16, 260,673.28 and 104,011.20 is: 143,535.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,894.16 : 260,673.28 = 104,011.20 : x
  2. Step 2: Convert to fraction form
    188,894.16/260,673.28 = 104,011.20/x
  3. Step 3: Cross multiply
    188,894.16x = 260,673.28 × 104,011.20
  4. Step 4: Simplify right side
    188,894.16x = 27,112,940,660.74
  5. Step 5: Solve for x
    x = 27,112,940,660.74/188,894.16
  6. Step 6: Final answer
    x = 143,535.09

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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.