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Finding the Fourth Proportional to 161,658.54, 242,614.17 and 112,087.80

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Solution

The fourth proportional to 161,658.54, 242,614.17 and 112,087.80 is: 168,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,658.54 : 242,614.17 = 112,087.80 : x
  2. Step 2: Convert to fraction form
    161,658.54/242,614.17 = 112,087.80/x
  3. Step 3: Cross multiply
    161,658.54x = 242,614.17 × 112,087.80
  4. Step 4: Simplify right side
    161,658.54x = 27,194,088,564.13
  5. Step 5: Solve for x
    x = 27,194,088,564.13/161,658.54
  6. Step 6: Final answer
    x = 168,219.31

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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.