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Finding the Fourth Proportional to 146,442.90, 202,092.27 and 79,374.90

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Solution

The fourth proportional to 146,442.90, 202,092.27 and 79,374.90 is: 109,537.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,442.90 : 202,092.27 = 79,374.90 : x
  2. Step 2: Convert to fraction form
    146,442.90/202,092.27 = 79,374.90/x
  3. Step 3: Cross multiply
    146,442.90x = 202,092.27 × 79,374.90
  4. Step 4: Simplify right side
    146,442.90x = 16,041,053,722.02
  5. Step 5: Solve for x
    x = 16,041,053,722.02/146,442.90
  6. Step 6: Final answer
    x = 109,537.94

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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.