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Finding the Fourth Proportional to 146,893.62, 202,775.21 and 99,211.56

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Solution

The fourth proportional to 146,893.62, 202,775.21 and 99,211.56 is: 136,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,893.62 : 202,775.21 = 99,211.56 : x
  2. Step 2: Convert to fraction form
    146,893.62/202,775.21 = 99,211.56/x
  3. Step 3: Cross multiply
    146,893.62x = 202,775.21 × 99,211.56
  4. Step 4: Simplify right side
    146,893.62x = 20,117,644,913.43
  5. Step 5: Solve for x
    x = 20,117,644,913.43/146,893.62
  6. Step 6: Final answer
    x = 136,953.84

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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.