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Finding the Fourth Proportional to 137,783.40, 206,732.70 and 44,317.80

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Solution

The fourth proportional to 137,783.40, 206,732.70 and 44,317.80 is: 66,495.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,783.40 : 206,732.70 = 44,317.80 : x
  2. Step 2: Convert to fraction form
    137,783.40/206,732.70 = 44,317.80/x
  3. Step 3: Cross multiply
    137,783.40x = 206,732.70 × 44,317.80
  4. Step 4: Simplify right side
    137,783.40x = 9,161,938,452.06
  5. Step 5: Solve for x
    x = 9,161,938,452.06/137,783.40
  6. Step 6: Final answer
    x = 66,495.23

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1.5x scale

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.