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Finding the Fourth Proportional to 161,603.94, 242,387.37 and 61,761.92

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Solution

The fourth proportional to 161,603.94, 242,387.37 and 61,761.92 is: 92,635.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,603.94 : 242,387.37 = 61,761.92 : x
  2. Step 2: Convert to fraction form
    161,603.94/242,387.37 = 61,761.92/x
  3. Step 3: Cross multiply
    161,603.94x = 242,387.37 × 61,761.92
  4. Step 4: Simplify right side
    161,603.94x = 14,970,308,143.01
  5. Step 5: Solve for x
    x = 14,970,308,143.01/161,603.94
  6. Step 6: Final answer
    x = 92,635.79

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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.