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Finding the Fourth Proportional to 202,353.40, 303,530.10 and 127,229.95

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Solution

The fourth proportional to 202,353.40, 303,530.10 and 127,229.95 is: 190,844.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,353.40 : 303,530.10 = 127,229.95 : x
  2. Step 2: Convert to fraction form
    202,353.40/303,530.10 = 127,229.95/x
  3. Step 3: Cross multiply
    202,353.40x = 303,530.10 × 127,229.95
  4. Step 4: Simplify right side
    202,353.40x = 38,618,119,446.50
  5. Step 5: Solve for x
    x = 38,618,119,446.50/202,353.40
  6. Step 6: Final answer
    x = 190,844.93

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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.