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Finding the Fourth Proportional to 137,851.80, 206,813.70 and 44,359.80

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Solution

The fourth proportional to 137,851.80, 206,813.70 and 44,359.80 is: 66,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,851.80 : 206,813.70 = 44,359.80 : x
  2. Step 2: Convert to fraction form
    137,851.80/206,813.70 = 44,359.80/x
  3. Step 3: Cross multiply
    137,851.80x = 206,813.70 × 44,359.80
  4. Step 4: Simplify right side
    137,851.80x = 9,174,214,369.26
  5. Step 5: Solve for x
    x = 9,174,214,369.26/137,851.80
  6. Step 6: Final answer
    x = 66,551.28

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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.