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Finding the Fourth Proportional to 201,697.92, 302,708.16 and 90,898.56

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Solution

The fourth proportional to 201,697.92, 302,708.16 and 90,898.56 is: 136,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,697.92 : 302,708.16 = 90,898.56 : x
  2. Step 2: Convert to fraction form
    201,697.92/302,708.16 = 90,898.56/x
  3. Step 3: Cross multiply
    201,697.92x = 302,708.16 × 90,898.56
  4. Step 4: Simplify right side
    201,697.92x = 27,515,735,844.25
  5. Step 5: Solve for x
    x = 27,515,735,844.25/201,697.92
  6. Step 6: Final answer
    x = 136,420.52

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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.