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Finding the Fourth Proportional to 202,722.05, 279,762.27 and 112,083.87

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Solution

The fourth proportional to 202,722.05, 279,762.27 and 112,083.87 is: 154,678.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,722.05 : 279,762.27 = 112,083.87 : x
  2. Step 2: Convert to fraction form
    202,722.05/279,762.27 = 112,083.87/x
  3. Step 3: Cross multiply
    202,722.05x = 279,762.27 × 112,083.87
  4. Step 4: Simplify right side
    202,722.05x = 31,356,835,942.35
  5. Step 5: Solve for x
    x = 31,356,835,942.35/202,722.05
  6. Step 6: Final answer
    x = 154,678.96

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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.