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Finding the Fourth Proportional to 207,175.46, 310,927.20 and 80,876.20

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Solution

The fourth proportional to 207,175.46, 310,927.20 and 80,876.20 is: 121,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,175.46 : 310,927.20 = 80,876.20 : x
  2. Step 2: Convert to fraction form
    207,175.46/310,927.20 = 80,876.20/x
  3. Step 3: Cross multiply
    207,175.46x = 310,927.20 × 80,876.20
  4. Step 4: Simplify right side
    207,175.46x = 25,146,610,412.64
  5. Step 5: Solve for x
    x = 25,146,610,412.64/207,175.46
  6. Step 6: Final answer
    x = 121,378.33

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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.