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Finding the Fourth Proportional to 202,677.37, 279,691.72 and 112,031.33

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Solution

The fourth proportional to 202,677.37, 279,691.72 and 112,031.33 is: 154,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,677.37 : 279,691.72 = 112,031.33 : x
  2. Step 2: Convert to fraction form
    202,677.37/279,691.72 = 112,031.33/x
  3. Step 3: Cross multiply
    202,677.37x = 279,691.72 × 112,031.33
  4. Step 4: Simplify right side
    202,677.37x = 31,334,233,703.05
  5. Step 5: Solve for x
    x = 31,334,233,703.05/202,677.37
  6. Step 6: Final answer
    x = 154,601.54

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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.