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Finding the Fourth Proportional to 366,930.60, 550,395.90 and 117,637.80

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Solution

The fourth proportional to 366,930.60, 550,395.90 and 117,637.80 is: 176,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,930.60 : 550,395.90 = 117,637.80 : x
  2. Step 2: Convert to fraction form
    366,930.60/550,395.90 = 117,637.80/x
  3. Step 3: Cross multiply
    366,930.60x = 550,395.90 × 117,637.80
  4. Step 4: Simplify right side
    366,930.60x = 64,747,362,805.02
  5. Step 5: Solve for x
    x = 64,747,362,805.02/366,930.60
  6. Step 6: Final answer
    x = 176,456.70

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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.