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Finding the Fourth Proportional to 161,571.85, 242,468.49 and 56,390.82

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Solution

The fourth proportional to 161,571.85, 242,468.49 and 56,390.82 is: 84,624.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,571.85 : 242,468.49 = 56,390.82 : x
  2. Step 2: Convert to fraction form
    161,571.85/242,468.49 = 56,390.82/x
  3. Step 3: Cross multiply
    161,571.85x = 242,468.49 × 56,390.82
  4. Step 4: Simplify right side
    161,571.85x = 13,672,996,693.31
  5. Step 5: Solve for x
    x = 13,672,996,693.31/161,571.85
  6. Step 6: Final answer
    x = 84,624.87

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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.