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Finding the Fourth Proportional to 247,445.94, 371,175.35 and 78,966.04

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Solution

The fourth proportional to 247,445.94, 371,175.35 and 78,966.04 is: 118,451.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,445.94 : 371,175.35 = 78,966.04 : x
  2. Step 2: Convert to fraction form
    247,445.94/371,175.35 = 78,966.04/x
  3. Step 3: Cross multiply
    247,445.94x = 371,175.35 × 78,966.04
  4. Step 4: Simplify right side
    247,445.94x = 29,310,247,241.44
  5. Step 5: Solve for x
    x = 29,310,247,241.44/247,445.94
  6. Step 6: Final answer
    x = 118,451.11

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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.