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Finding the Fourth Proportional to 366,980.60, 550,470.90 and 117,687.80

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Solution

The fourth proportional to 366,980.60, 550,470.90 and 117,687.80 is: 176,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,980.60 : 550,470.90 = 117,687.80 : x
  2. Step 2: Convert to fraction form
    366,980.60/550,470.90 = 117,687.80/x
  3. Step 3: Cross multiply
    366,980.60x = 550,470.90 × 117,687.80
  4. Step 4: Simplify right side
    366,980.60x = 64,783,709,185.02
  5. Step 5: Solve for x
    x = 64,783,709,185.02/366,980.60
  6. Step 6: Final answer
    x = 176,531.70

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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.