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Finding the Fourth Proportional to 207,342.02, 310,998.44 and 80,958.52

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Solution

The fourth proportional to 207,342.02, 310,998.44 and 80,958.52 is: 121,432.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,342.02 : 310,998.44 = 80,958.52 : x
  2. Step 2: Convert to fraction form
    207,342.02/310,998.44 = 80,958.52/x
  3. Step 3: Cross multiply
    207,342.02x = 310,998.44 × 80,958.52
  4. Step 4: Simplify right side
    207,342.02x = 25,177,973,424.71
  5. Step 5: Solve for x
    x = 25,177,973,424.71/207,342.02
  6. Step 6: Final answer
    x = 121,432.08

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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.