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Finding the Fourth Proportional to 161,687.94, 242,472.78 and 61,798.74

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Solution

The fourth proportional to 161,687.94, 242,472.78 and 61,798.74 is: 92,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,687.94 : 242,472.78 = 61,798.74 : x
  2. Step 2: Convert to fraction form
    161,687.94/242,472.78 = 61,798.74/x
  3. Step 3: Cross multiply
    161,687.94x = 242,472.78 × 61,798.74
  4. Step 4: Simplify right side
    161,687.94x = 14,984,512,288.30
  5. Step 5: Solve for x
    x = 14,984,512,288.30/161,687.94
  6. Step 6: Final answer
    x = 92,675.51

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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.