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Finding the Fourth Proportional to 448,622.72, 672,737.12 and 167,943.12

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Solution

The fourth proportional to 448,622.72, 672,737.12 and 167,943.12 is: 251,840.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,622.72 : 672,737.12 = 167,943.12 : x
  2. Step 2: Convert to fraction form
    448,622.72/672,737.12 = 167,943.12/x
  3. Step 3: Cross multiply
    448,622.72x = 672,737.12 × 167,943.12
  4. Step 4: Simplify right side
    448,622.72x = 112,981,570,872.61
  5. Step 5: Solve for x
    x = 112,981,570,872.61/448,622.72
  6. Step 6: Final answer
    x = 251,840.95

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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.