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Finding the Fourth Proportional to 202,665.30, 279,672.92 and 112,014.96

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Solution

The fourth proportional to 202,665.30, 279,672.92 and 112,014.96 is: 154,577.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,665.30 : 279,672.92 = 112,014.96 : x
  2. Step 2: Convert to fraction form
    202,665.30/279,672.92 = 112,014.96/x
  3. Step 3: Cross multiply
    202,665.30x = 279,672.92 × 112,014.96
  4. Step 4: Simplify right side
    202,665.30x = 31,327,550,946.88
  5. Step 5: Solve for x
    x = 31,327,550,946.88/202,665.30
  6. Step 6: Final answer
    x = 154,577.77

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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.