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Finding the Fourth Proportional to 247,343.94, 371,066.22 and 105,188.94

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Solution

The fourth proportional to 247,343.94, 371,066.22 and 105,188.94 is: 157,804.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,343.94 : 371,066.22 = 105,188.94 : x
  2. Step 2: Convert to fraction form
    247,343.94/371,066.22 = 105,188.94/x
  3. Step 3: Cross multiply
    247,343.94x = 371,066.22 × 105,188.94
  4. Step 4: Simplify right side
    247,343.94x = 39,032,062,351.61
  5. Step 5: Solve for x
    x = 39,032,062,351.61/247,343.94
  6. Step 6: Final answer
    x = 157,804.81

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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.