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Finding the Fourth Proportional to 159,114.99, 219,524.07 and 98,663.88

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Solution

The fourth proportional to 159,114.99, 219,524.07 and 98,663.88 is: 136,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,114.99 : 219,524.07 = 98,663.88 : x
  2. Step 2: Convert to fraction form
    159,114.99/219,524.07 = 98,663.88/x
  3. Step 3: Cross multiply
    159,114.99x = 219,524.07 × 98,663.88
  4. Step 4: Simplify right side
    159,114.99x = 21,659,096,499.59
  5. Step 5: Solve for x
    x = 21,659,096,499.59/159,114.99
  6. Step 6: Final answer
    x = 136,122.29

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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.