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Finding the Fourth Proportional to 119,490.44, 164,895.66 and 65,774.07

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Solution

The fourth proportional to 119,490.44, 164,895.66 and 65,774.07 is: 90,767.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,490.44 : 164,895.66 = 65,774.07 : x
  2. Step 2: Convert to fraction form
    119,490.44/164,895.66 = 65,774.07/x
  3. Step 3: Cross multiply
    119,490.44x = 164,895.66 × 65,774.07
  4. Step 4: Simplify right side
    119,490.44x = 10,845,858,683.54
  5. Step 5: Solve for x
    x = 10,845,858,683.54/119,490.44
  6. Step 6: Final answer
    x = 90,767.59

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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.