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Finding the Fourth Proportional to 168,835.68, 253,122.24 and 84,552.56

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Solution

The fourth proportional to 168,835.68, 253,122.24 and 84,552.56 is: 126,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,835.68 : 253,122.24 = 84,552.56 : x
  2. Step 2: Convert to fraction form
    168,835.68/253,122.24 = 84,552.56/x
  3. Step 3: Cross multiply
    168,835.68x = 253,122.24 × 84,552.56
  4. Step 4: Simplify right side
    168,835.68x = 21,402,133,384.93
  5. Step 5: Solve for x
    x = 21,402,133,384.93/168,835.68
  6. Step 6: Final answer
    x = 126,763.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.