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Finding the Fourth Proportional to 202,730.05, 279,762.54 and 112,083.68

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Solution

The fourth proportional to 202,730.05, 279,762.54 and 112,083.68 is: 154,672.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,730.05 : 279,762.54 = 112,083.68 : x
  2. Step 2: Convert to fraction form
    202,730.05/279,762.54 = 112,083.68/x
  3. Step 3: Cross multiply
    202,730.05x = 279,762.54 × 112,083.68
  4. Step 4: Simplify right side
    202,730.05x = 31,356,815,918.91
  5. Step 5: Solve for x
    x = 31,356,815,918.91/202,730.05
  6. Step 6: Final answer
    x = 154,672.76

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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.