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Finding the Fourth Proportional to 161,686.69, 242,470.90 and 61,797.49

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Solution

The fourth proportional to 161,686.69, 242,470.90 and 61,797.49 is: 92,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,686.69 : 242,470.90 = 61,797.49 : x
  2. Step 2: Convert to fraction form
    161,686.69/242,470.90 = 61,797.49/x
  3. Step 3: Cross multiply
    161,686.69x = 242,470.90 × 61,797.49
  4. Step 4: Simplify right side
    161,686.69x = 14,984,093,018.04
  5. Step 5: Solve for x
    x = 14,984,093,018.04/161,686.69
  6. Step 6: Final answer
    x = 92,673.63

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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.