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Finding the Fourth Proportional to 152,169.31, 228,067.01 and 85,469.23

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Solution

The fourth proportional to 152,169.31, 228,067.01 and 85,469.23 is: 128,098.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,169.31 : 228,067.01 = 85,469.23 : x
  2. Step 2: Convert to fraction form
    152,169.31/228,067.01 = 85,469.23/x
  3. Step 3: Cross multiply
    152,169.31x = 228,067.01 × 85,469.23
  4. Step 4: Simplify right side
    152,169.31x = 19,492,711,733.10
  5. Step 5: Solve for x
    x = 19,492,711,733.10/152,169.31
  6. Step 6: Final answer
    x = 128,098.84

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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.