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Finding the Fourth Proportional to 168,239.32, 252,384.22 and 54,349.08

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Solution

The fourth proportional to 168,239.32, 252,384.22 and 54,349.08 is: 81,531.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,239.32 : 252,384.22 = 54,349.08 : x
  2. Step 2: Convert to fraction form
    168,239.32/252,384.22 = 54,349.08/x
  3. Step 3: Cross multiply
    168,239.32x = 252,384.22 × 54,349.08
  4. Step 4: Simplify right side
    168,239.32x = 13,716,850,163.52
  5. Step 5: Solve for x
    x = 13,716,850,163.52/168,239.32
  6. Step 6: Final answer
    x = 81,531.77

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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.