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Finding the Fourth Proportional to 135,390.88, 203,084.88 and 52,226.56

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Solution

The fourth proportional to 135,390.88, 203,084.88 and 52,226.56 is: 78,339.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,390.88 : 203,084.88 = 52,226.56 : x
  2. Step 2: Convert to fraction form
    135,390.88/203,084.88 = 52,226.56/x
  3. Step 3: Cross multiply
    135,390.88x = 203,084.88 × 52,226.56
  4. Step 4: Simplify right side
    135,390.88x = 10,606,424,670.41
  5. Step 5: Solve for x
    x = 10,606,424,670.41/135,390.88
  6. Step 6: Final answer
    x = 78,339.28

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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.