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Finding the Fourth Proportional to 66,802, 92,184.94 and 38,121.14

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Solution

The fourth proportional to 66,802, 92,184.94 and 38,121.14 is: 52,606.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,802 : 92,184.94 = 38,121.14 : x
  2. Step 2: Convert to fraction form
    66,802/92,184.94 = 38,121.14/x
  3. Step 3: Cross multiply
    66,802x = 92,184.94 × 38,121.14
  4. Step 4: Simplify right side
    66,802x = 3,514,195,003.63
  5. Step 5: Solve for x
    x = 3,514,195,003.63/66,802
  6. Step 6: Final answer
    x = 52,606.13

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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.