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Finding the Fourth Proportional to 178,887.80, 268,329.78 and 45,767.00

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Solution

The fourth proportional to 178,887.80, 268,329.78 and 45,767.00 is: 68,650.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,887.80 : 268,329.78 = 45,767.00 : x
  2. Step 2: Convert to fraction form
    178,887.80/268,329.78 = 45,767.00/x
  3. Step 3: Cross multiply
    178,887.80x = 268,329.78 × 45,767.00
  4. Step 4: Simplify right side
    178,887.80x = 12,280,647,699.61
  5. Step 5: Solve for x
    x = 12,280,647,699.61/178,887.80
  6. Step 6: Final answer
    x = 68,650.00

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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.