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Finding the Fourth Proportional to 308,188.67, 462,040.72 and 207,089.33

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Solution

The fourth proportional to 308,188.67, 462,040.72 and 207,089.33 is: 310,471.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,188.67 : 462,040.72 = 207,089.33 : x
  2. Step 2: Convert to fraction form
    308,188.67/462,040.72 = 207,089.33/x
  3. Step 3: Cross multiply
    308,188.67x = 462,040.72 × 207,089.33
  4. Step 4: Simplify right side
    308,188.67x = 95,683,703,137.52
  5. Step 5: Solve for x
    x = 95,683,703,137.52/308,188.67
  6. Step 6: Final answer
    x = 310,471.19

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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.