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Finding the Fourth Proportional to 202,115.01, 303,200.18 and 68,959.52

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Solution

The fourth proportional to 202,115.01, 303,200.18 and 68,959.52 is: 103,448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,115.01 : 303,200.18 = 68,959.52 : x
  2. Step 2: Convert to fraction form
    202,115.01/303,200.18 = 68,959.52/x
  3. Step 3: Cross multiply
    202,115.01x = 303,200.18 × 68,959.52
  4. Step 4: Simplify right side
    202,115.01x = 20,908,538,411.51
  5. Step 5: Solve for x
    x = 20,908,538,411.51/202,115.01
  6. Step 6: Final answer
    x = 103,448.71

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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.