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Finding the Fourth Proportional to 119,248.99, 164,573.71 and 81,093.19

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Solution

The fourth proportional to 119,248.99, 164,573.71 and 81,093.19 is: 111,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,248.99 : 164,573.71 = 81,093.19 : x
  2. Step 2: Convert to fraction form
    119,248.99/164,573.71 = 81,093.19/x
  3. Step 3: Cross multiply
    119,248.99x = 164,573.71 × 81,093.19
  4. Step 4: Simplify right side
    119,248.99x = 13,345,807,716.43
  5. Step 5: Solve for x
    x = 13,345,807,716.43/119,248.99
  6. Step 6: Final answer
    x = 111,915.47

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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.