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Finding the Fourth Proportional to 90,066.88, 135,124.92 and 26,889.92

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Solution

The fourth proportional to 90,066.88, 135,124.92 and 26,889.92 is: 40,342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,066.88 : 135,124.92 = 26,889.92 : x
  2. Step 2: Convert to fraction form
    90,066.88/135,124.92 = 26,889.92/x
  3. Step 3: Cross multiply
    90,066.88x = 135,124.92 × 26,889.92
  4. Step 4: Simplify right side
    90,066.88x = 3,633,497,613.18
  5. Step 5: Solve for x
    x = 3,633,497,613.18/90,066.88
  6. Step 6: Final answer
    x = 40,342.22

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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.