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Finding the Fourth Proportional to 92,287.53, 138,442.83 and 36,120.38

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Solution

The fourth proportional to 92,287.53, 138,442.83 and 36,120.38 is: 54,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,287.53 : 138,442.83 = 36,120.38 : x
  2. Step 2: Convert to fraction form
    92,287.53/138,442.83 = 36,120.38/x
  3. Step 3: Cross multiply
    92,287.53x = 138,442.83 × 36,120.38
  4. Step 4: Simplify right side
    92,287.53x = 5,000,606,935.66
  5. Step 5: Solve for x
    x = 5,000,606,935.66/92,287.53
  6. Step 6: Final answer
    x = 54,185.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.