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Finding the Fourth Proportional to 202,081.80, 303,122.70 and 166,652.40

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Solution

The fourth proportional to 202,081.80, 303,122.70 and 166,652.40 is: 249,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,081.80 : 303,122.70 = 166,652.40 : x
  2. Step 2: Convert to fraction form
    202,081.80/303,122.70 = 166,652.40/x
  3. Step 3: Cross multiply
    202,081.80x = 303,122.70 × 166,652.40
  4. Step 4: Simplify right side
    202,081.80x = 50,516,125,449.48
  5. Step 5: Solve for x
    x = 50,516,125,449.48/202,081.80
  6. Step 6: Final answer
    x = 249,978.60

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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.