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Finding the Fourth Proportional to 164,887.20, 247,248.90 and 52,552.80

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Solution

The fourth proportional to 164,887.20, 247,248.90 and 52,552.80 is: 78,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,887.20 : 247,248.90 = 52,552.80 : x
  2. Step 2: Convert to fraction form
    164,887.20/247,248.90 = 52,552.80/x
  3. Step 3: Cross multiply
    164,887.20x = 247,248.90 × 52,552.80
  4. Step 4: Simplify right side
    164,887.20x = 12,993,621,991.92
  5. Step 5: Solve for x
    x = 12,993,621,991.92/164,887.20
  6. Step 6: Final answer
    x = 78,803.10

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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.