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Finding the Fourth Proportional to 202,306.70, 303,423.60 and 127,292.60

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Solution

The fourth proportional to 202,306.70, 303,423.60 and 127,292.60 is: 190,915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,306.70 : 303,423.60 = 127,292.60 : x
  2. Step 2: Convert to fraction form
    202,306.70/303,423.60 = 127,292.60/x
  3. Step 3: Cross multiply
    202,306.70x = 303,423.60 × 127,292.60
  4. Step 4: Simplify right side
    202,306.70x = 38,623,578,945.36
  5. Step 5: Solve for x
    x = 38,623,578,945.36/202,306.70
  6. Step 6: Final answer
    x = 190,915.97

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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.