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Finding the Fourth Proportional to 66,803, 92,186.32 and 38,122.14

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Solution

The fourth proportional to 66,803, 92,186.32 and 38,122.14 is: 52,607.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,803 : 92,186.32 = 38,122.14 : x
  2. Step 2: Convert to fraction form
    66,803/92,186.32 = 38,122.14/x
  3. Step 3: Cross multiply
    66,803x = 92,186.32 × 38,122.14
  4. Step 4: Simplify right side
    66,803x = 3,514,339,797.12
  5. Step 5: Solve for x
    x = 3,514,339,797.12/66,803
  6. Step 6: Final answer
    x = 52,607.51

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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.