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Finding the Fourth Proportional to 192,592.74, 288,895.50 and 66,231.72

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Solution

The fourth proportional to 192,592.74, 288,895.50 and 66,231.72 is: 99,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,592.74 : 288,895.50 = 66,231.72 : x
  2. Step 2: Convert to fraction form
    192,592.74/288,895.50 = 66,231.72/x
  3. Step 3: Cross multiply
    192,592.74x = 288,895.50 × 66,231.72
  4. Step 4: Simplify right side
    192,592.74x = 19,134,045,865.26
  5. Step 5: Solve for x
    x = 19,134,045,865.26/192,592.74
  6. Step 6: Final answer
    x = 99,349.78

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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.