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Finding the Fourth Proportional to 341,990.82, 471,932.73 and 189,021.18

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Solution

The fourth proportional to 341,990.82, 471,932.73 and 189,021.18 is: 260,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,990.82 : 471,932.73 = 189,021.18 : x
  2. Step 2: Convert to fraction form
    341,990.82/471,932.73 = 189,021.18/x
  3. Step 3: Cross multiply
    341,990.82x = 471,932.73 × 189,021.18
  4. Step 4: Simplify right side
    341,990.82x = 89,205,281,505.22
  5. Step 5: Solve for x
    x = 89,205,281,505.22/341,990.82
  6. Step 6: Final answer
    x = 260,841.16

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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.