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Finding the Fourth Proportional to 289,779.71, 400,093.97 and 181,049.58

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Solution

The fourth proportional to 289,779.71, 400,093.97 and 181,049.58 is: 249,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,779.71 : 400,093.97 = 181,049.58 : x
  2. Step 2: Convert to fraction form
    289,779.71/400,093.97 = 181,049.58/x
  3. Step 3: Cross multiply
    289,779.71x = 400,093.97 × 181,049.58
  4. Step 4: Simplify right side
    289,779.71x = 72,436,844,323.78
  5. Step 5: Solve for x
    x = 72,436,844,323.78/289,779.71
  6. Step 6: Final answer
    x = 249,972.11

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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.