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Finding the Fourth Proportional to 192,809.76, 266,083.56 and 112,265.52

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Solution

The fourth proportional to 192,809.76, 266,083.56 and 112,265.52 is: 154,929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,809.76 : 266,083.56 = 112,265.52 : x
  2. Step 2: Convert to fraction form
    192,809.76/266,083.56 = 112,265.52/x
  3. Step 3: Cross multiply
    192,809.76x = 266,083.56 × 112,265.52
  4. Step 4: Simplify right side
    192,809.76x = 29,872,009,226.85
  5. Step 5: Solve for x
    x = 29,872,009,226.85/192,809.76
  6. Step 6: Final answer
    x = 154,929.96

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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.