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Finding the Fourth Proportional to 247,361.50, 371,102.64 and 78,881.83

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Solution

The fourth proportional to 247,361.50, 371,102.64 and 78,881.83 is: 118,342.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,361.50 : 371,102.64 = 78,881.83 : x
  2. Step 2: Convert to fraction form
    247,361.50/371,102.64 = 78,881.83/x
  3. Step 3: Cross multiply
    247,361.50x = 371,102.64 × 78,881.83
  4. Step 4: Simplify right side
    247,361.50x = 29,273,255,361.03
  5. Step 5: Solve for x
    x = 29,273,255,361.03/247,361.50
  6. Step 6: Final answer
    x = 118,342.00

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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.