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Finding the Fourth Proportional to 135,903.55, 203,855.33 and 127,155.55

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Solution

The fourth proportional to 135,903.55, 203,855.33 and 127,155.55 is: 190,733.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,903.55 : 203,855.33 = 127,155.55 : x
  2. Step 2: Convert to fraction form
    135,903.55/203,855.33 = 127,155.55/x
  3. Step 3: Cross multiply
    135,903.55x = 203,855.33 × 127,155.55
  4. Step 4: Simplify right side
    135,903.55x = 25,921,335,970.80
  5. Step 5: Solve for x
    x = 25,921,335,970.80/135,903.55
  6. Step 6: Final answer
    x = 190,733.33

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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.