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Finding the Fourth Proportional to 202,596, 279,582.48 and 113,172

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Solution

The fourth proportional to 202,596, 279,582.48 and 113,172 is: 156,177.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,596 : 279,582.48 = 113,172 : x
  2. Step 2: Convert to fraction form
    202,596/279,582.48 = 113,172/x
  3. Step 3: Cross multiply
    202,596x = 279,582.48 × 113,172
  4. Step 4: Simplify right side
    202,596x = 31,640,908,426.56
  5. Step 5: Solve for x
    x = 31,640,908,426.56/202,596
  6. Step 6: Final answer
    x = 156,177.36

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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.