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Finding the Fourth Proportional to 215,157.22, 296,927.48 and 119,661.87

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Solution

The fourth proportional to 215,157.22, 296,927.48 and 119,661.87 is: 165,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,157.22 : 296,927.48 = 119,661.87 : x
  2. Step 2: Convert to fraction form
    215,157.22/296,927.48 = 119,661.87/x
  3. Step 3: Cross multiply
    215,157.22x = 296,927.48 × 119,661.87
  4. Step 4: Simplify right side
    215,157.22x = 35,530,897,511.19
  5. Step 5: Solve for x
    x = 35,530,897,511.19/215,157.22
  6. Step 6: Final answer
    x = 165,139.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.