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Finding the Fourth Proportional to 207,653.92, 311,553.16 and 65,521.14

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Solution

The fourth proportional to 207,653.92, 311,553.16 and 65,521.14 is: 98,304.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,653.92 : 311,553.16 = 65,521.14 : x
  2. Step 2: Convert to fraction form
    207,653.92/311,553.16 = 65,521.14/x
  3. Step 3: Cross multiply
    207,653.92x = 311,553.16 × 65,521.14
  4. Step 4: Simplify right side
    207,653.92x = 20,413,318,213.80
  5. Step 5: Solve for x
    x = 20,413,318,213.80/207,653.92
  6. Step 6: Final answer
    x = 98,304.52

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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.