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Finding the Fourth Proportional to 202,070.69, 303,106.05 and 112,168.61

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Solution

The fourth proportional to 202,070.69, 303,106.05 and 112,168.61 is: 168,252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,070.69 : 303,106.05 = 112,168.61 : x
  2. Step 2: Convert to fraction form
    202,070.69/303,106.05 = 112,168.61/x
  3. Step 3: Cross multiply
    202,070.69x = 303,106.05 × 112,168.61
  4. Step 4: Simplify right side
    202,070.69x = 33,998,982,795.56
  5. Step 5: Solve for x
    x = 33,998,982,795.56/202,070.69
  6. Step 6: Final answer
    x = 168,252.92

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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.