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Finding the Fourth Proportional to 159,656.92, 220,244.09 and 99,204.59

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Solution

The fourth proportional to 159,656.92, 220,244.09 and 99,204.59 is: 136,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,656.92 : 220,244.09 = 99,204.59 : x
  2. Step 2: Convert to fraction form
    159,656.92/220,244.09 = 99,204.59/x
  3. Step 3: Cross multiply
    159,656.92x = 220,244.09 × 99,204.59
  4. Step 4: Simplify right side
    159,656.92x = 21,849,225,446.99
  5. Step 5: Solve for x
    x = 21,849,225,446.99/159,656.92
  6. Step 6: Final answer
    x = 136,851.10

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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.