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Finding the Fourth Proportional to 186,523.37, 279,757.72 and 91,728.08

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Solution

The fourth proportional to 186,523.37, 279,757.72 and 91,728.08 is: 137,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,523.37 : 279,757.72 = 91,728.08 : x
  2. Step 2: Convert to fraction form
    186,523.37/279,757.72 = 91,728.08/x
  3. Step 3: Cross multiply
    186,523.37x = 279,757.72 × 91,728.08
  4. Step 4: Simplify right side
    186,523.37x = 25,661,638,285.74
  5. Step 5: Solve for x
    x = 25,661,638,285.74/186,523.37
  6. Step 6: Final answer
    x = 137,578.68

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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.