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Finding the Fourth Proportional to 202,405.80, 303,608.70 and 62,171.40

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Solution

The fourth proportional to 202,405.80, 303,608.70 and 62,171.40 is: 93,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,405.80 : 303,608.70 = 62,171.40 : x
  2. Step 2: Convert to fraction form
    202,405.80/303,608.70 = 62,171.40/x
  3. Step 3: Cross multiply
    202,405.80x = 303,608.70 × 62,171.40
  4. Step 4: Simplify right side
    202,405.80x = 18,875,777,931.18
  5. Step 5: Solve for x
    x = 18,875,777,931.18/202,405.80
  6. Step 6: Final answer
    x = 93,257.10

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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.