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Finding the Fourth Proportional to 161,572.28, 242,358.49 and 161,338.81

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Solution

The fourth proportional to 161,572.28, 242,358.49 and 161,338.81 is: 242,008.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,572.28 : 242,358.49 = 161,338.81 : x
  2. Step 2: Convert to fraction form
    161,572.28/242,358.49 = 161,338.81/x
  3. Step 3: Cross multiply
    161,572.28x = 242,358.49 × 161,338.81
  4. Step 4: Simplify right side
    161,572.28x = 39,101,828,754.86
  5. Step 5: Solve for x
    x = 39,101,828,754.86/161,572.28
  6. Step 6: Final answer
    x = 242,008.27

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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.