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Finding the Fourth Proportional to 192,356.55, 288,540.72 and 65,995.04

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Solution

The fourth proportional to 192,356.55, 288,540.72 and 65,995.04 is: 98,994.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,356.55 : 288,540.72 = 65,995.04 : x
  2. Step 2: Convert to fraction form
    192,356.55/288,540.72 = 65,995.04/x
  3. Step 3: Cross multiply
    192,356.55x = 288,540.72 × 65,995.04
  4. Step 4: Simplify right side
    192,356.55x = 19,042,254,915.33
  5. Step 5: Solve for x
    x = 19,042,254,915.33/192,356.55
  6. Step 6: Final answer
    x = 98,994.57

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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.