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Finding the Fourth Proportional to 202,069.90, 303,432.90 and 135,803.80

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Solution

The fourth proportional to 202,069.90, 303,432.90 and 135,803.80 is: 203,926.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,069.90 : 303,432.90 = 135,803.80 : x
  2. Step 2: Convert to fraction form
    202,069.90/303,432.90 = 135,803.80/x
  3. Step 3: Cross multiply
    202,069.90x = 303,432.90 × 135,803.80
  4. Step 4: Simplify right side
    202,069.90x = 41,207,340,865.02
  5. Step 5: Solve for x
    x = 41,207,340,865.02/202,069.90
  6. Step 6: Final answer
    x = 203,926.17

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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.