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Finding the Fourth Proportional to 207,632.32, 311,448.96 and 57,872.96

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Solution

The fourth proportional to 207,632.32, 311,448.96 and 57,872.96 is: 86,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,632.32 : 311,448.96 = 57,872.96 : x
  2. Step 2: Convert to fraction form
    207,632.32/311,448.96 = 57,872.96/x
  3. Step 3: Cross multiply
    207,632.32x = 311,448.96 × 57,872.96
  4. Step 4: Simplify right side
    207,632.32x = 18,024,473,204.12
  5. Step 5: Solve for x
    x = 18,024,473,204.12/207,632.32
  6. Step 6: Final answer
    x = 86,809.57

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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.