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Finding the Fourth Proportional to 117,949.80, 176,916.60 and 37,986.60

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Solution

The fourth proportional to 117,949.80, 176,916.60 and 37,986.60 is: 56,977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,949.80 : 176,916.60 = 37,986.60 : x
  2. Step 2: Convert to fraction form
    117,949.80/176,916.60 = 37,986.60/x
  3. Step 3: Cross multiply
    117,949.80x = 176,916.60 × 37,986.60
  4. Step 4: Simplify right side
    117,949.80x = 6,720,460,117.56
  5. Step 5: Solve for x
    x = 6,720,460,117.56/117,949.80
  6. Step 6: Final answer
    x = 56,977.29

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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.