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Finding the Fourth Proportional to 188,969.38, 260,780.56 and 102,932.35

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Solution

The fourth proportional to 188,969.38, 260,780.56 and 102,932.35 is: 142,048.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,969.38 : 260,780.56 = 102,932.35 : x
  2. Step 2: Convert to fraction form
    188,969.38/260,780.56 = 102,932.35/x
  3. Step 3: Cross multiply
    188,969.38x = 260,780.56 × 102,932.35
  4. Step 4: Simplify right side
    188,969.38x = 26,842,754,965.83
  5. Step 5: Solve for x
    x = 26,842,754,965.83/188,969.38
  6. Step 6: Final answer
    x = 142,048.17

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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.