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Finding the Fourth Proportional to 202,222.70, 303,139.65 and 157,219.10

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Solution

The fourth proportional to 202,222.70, 303,139.65 and 157,219.10 is: 235,677.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,222.70 : 303,139.65 = 157,219.10 : x
  2. Step 2: Convert to fraction form
    202,222.70/303,139.65 = 157,219.10/x
  3. Step 3: Cross multiply
    202,222.70x = 303,139.65 × 157,219.10
  4. Step 4: Simplify right side
    202,222.70x = 47,659,342,947.32
  5. Step 5: Solve for x
    x = 47,659,342,947.32/202,222.70
  6. Step 6: Final answer
    x = 235,677.51

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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.