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Finding the Fourth Proportional to 135,953.16, 203,789.58 and 98,420.22

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Solution

The fourth proportional to 135,953.16, 203,789.58 and 98,420.22 is: 147,528.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,953.16 : 203,789.58 = 98,420.22 : x
  2. Step 2: Convert to fraction form
    135,953.16/203,789.58 = 98,420.22/x
  3. Step 3: Cross multiply
    135,953.16x = 203,789.58 × 98,420.22
  4. Step 4: Simplify right side
    135,953.16x = 20,057,015,297.31
  5. Step 5: Solve for x
    x = 20,057,015,297.31/135,953.16
  6. Step 6: Final answer
    x = 147,528.86

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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.