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Finding the Fourth Proportional to 178,887.30, 268,329.04 and 45,766.50

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Solution

The fourth proportional to 178,887.30, 268,329.04 and 45,766.50 is: 68,649.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,887.30 : 268,329.04 = 45,766.50 : x
  2. Step 2: Convert to fraction form
    178,887.30/268,329.04 = 45,766.50/x
  3. Step 3: Cross multiply
    178,887.30x = 268,329.04 × 45,766.50
  4. Step 4: Simplify right side
    178,887.30x = 12,280,481,009.16
  5. Step 5: Solve for x
    x = 12,280,481,009.16/178,887.30
  6. Step 6: Final answer
    x = 68,649.26

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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.