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Finding the Fourth Proportional to 207,099.70, 310,452.64 and 132,009.06

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Solution

The fourth proportional to 207,099.70, 310,452.64 and 132,009.06 is: 197,888.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,099.70 : 310,452.64 = 132,009.06 : x
  2. Step 2: Convert to fraction form
    207,099.70/310,452.64 = 132,009.06/x
  3. Step 3: Cross multiply
    207,099.70x = 310,452.64 × 132,009.06
  4. Step 4: Simplify right side
    207,099.70x = 40,982,561,180.92
  5. Step 5: Solve for x
    x = 40,982,561,180.92/207,099.70
  6. Step 6: Final answer
    x = 197,888.08

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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.