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Finding the Fourth Proportional to 202,220.20, 303,579.90 and 127,340.20

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Solution

The fourth proportional to 202,220.20, 303,579.90 and 127,340.20 is: 191,167.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,220.20 : 303,579.90 = 127,340.20 : x
  2. Step 2: Convert to fraction form
    202,220.20/303,579.90 = 127,340.20/x
  3. Step 3: Cross multiply
    202,220.20x = 303,579.90 × 127,340.20
  4. Step 4: Simplify right side
    202,220.20x = 38,657,925,181.98
  5. Step 5: Solve for x
    x = 38,657,925,181.98/202,220.20
  6. Step 6: Final answer
    x = 191,167.48

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1.5x scale

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.