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Finding the Fourth Proportional to 161,778.70, 242,581.65 and 56,601.10

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Solution

The fourth proportional to 161,778.70, 242,581.65 and 56,601.10 is: 84,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,778.70 : 242,581.65 = 56,601.10 : x
  2. Step 2: Convert to fraction form
    161,778.70/242,581.65 = 56,601.10/x
  3. Step 3: Cross multiply
    161,778.70x = 242,581.65 × 56,601.10
  4. Step 4: Simplify right side
    161,778.70x = 13,730,388,229.82
  5. Step 5: Solve for x
    x = 13,730,388,229.82/161,778.70
  6. Step 6: Final answer
    x = 84,871.42

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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.