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Finding the Fourth Proportional to 247,193.16, 370,845.42 and 87,280.44

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Solution

The fourth proportional to 247,193.16, 370,845.42 and 87,280.44 is: 130,940.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,193.16 : 370,845.42 = 87,280.44 : x
  2. Step 2: Convert to fraction form
    247,193.16/370,845.42 = 87,280.44/x
  3. Step 3: Cross multiply
    247,193.16x = 370,845.42 × 87,280.44
  4. Step 4: Simplify right side
    247,193.16x = 32,367,551,429.58
  5. Step 5: Solve for x
    x = 32,367,551,429.58/247,193.16
  6. Step 6: Final answer
    x = 130,940.32

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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.