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Finding the Fourth Proportional to 90,673.92, 135,997.44 and 48,502.08

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Solution

The fourth proportional to 90,673.92, 135,997.44 and 48,502.08 is: 72,745.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,673.92 : 135,997.44 = 48,502.08 : x
  2. Step 2: Convert to fraction form
    90,673.92/135,997.44 = 48,502.08/x
  3. Step 3: Cross multiply
    90,673.92x = 135,997.44 × 48,502.08
  4. Step 4: Simplify right side
    90,673.92x = 6,596,158,714.68
  5. Step 5: Solve for x
    x = 6,596,158,714.68/90,673.92
  6. Step 6: Final answer
    x = 72,745.93

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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.