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Finding the Fourth Proportional to 296,600.22, 444,976.18 and 86,238.16

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Solution

The fourth proportional to 296,600.22, 444,976.18 and 86,238.16 is: 129,379.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,600.22 : 444,976.18 = 86,238.16 : x
  2. Step 2: Convert to fraction form
    296,600.22/444,976.18 = 86,238.16/x
  3. Step 3: Cross multiply
    296,600.22x = 444,976.18 × 86,238.16
  4. Step 4: Simplify right side
    296,600.22x = 38,373,925,678.99
  5. Step 5: Solve for x
    x = 38,373,925,678.99/296,600.22
  6. Step 6: Final answer
    x = 129,379.29

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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.