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Finding the Fourth Proportional to 492,255.56, 738,507.88 and 137,269.62

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Solution

The fourth proportional to 492,255.56, 738,507.88 and 137,269.62 is: 205,939.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,255.56 : 738,507.88 = 137,269.62 : x
  2. Step 2: Convert to fraction form
    492,255.56/738,507.88 = 137,269.62/x
  3. Step 3: Cross multiply
    492,255.56x = 738,507.88 × 137,269.62
  4. Step 4: Simplify right side
    492,255.56x = 101,374,696,226.19
  5. Step 5: Solve for x
    x = 101,374,696,226.19/492,255.56
  6. Step 6: Final answer
    x = 205,939.16

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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.