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Finding the Fourth Proportional to 316,722, 475,151.04 and 92,086.32

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Solution

The fourth proportional to 316,722, 475,151.04 and 92,086.32 is: 138,149.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,722 : 475,151.04 = 92,086.32 : x
  2. Step 2: Convert to fraction form
    316,722/475,151.04 = 92,086.32/x
  3. Step 3: Cross multiply
    316,722x = 475,151.04 × 92,086.32
  4. Step 4: Simplify right side
    316,722x = 43,754,910,717.77
  5. Step 5: Solve for x
    x = 43,754,910,717.77/316,722
  6. Step 6: Final answer
    x = 138,149.26

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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.