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Finding the Fourth Proportional to 207,923.60, 311,424.60 and 161,024.40

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Solution

The fourth proportional to 207,923.60, 311,424.60 and 161,024.40 is: 241,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,923.60 : 311,424.60 = 161,024.40 : x
  2. Step 2: Convert to fraction form
    207,923.60/311,424.60 = 161,024.40/x
  3. Step 3: Cross multiply
    207,923.60x = 311,424.60 × 161,024.40
  4. Step 4: Simplify right side
    207,923.60x = 50,146,959,360.24
  5. Step 5: Solve for x
    x = 50,146,959,360.24/207,923.60
  6. Step 6: Final answer
    x = 241,179.74

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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.