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Finding the Fourth Proportional to 72,626.60, 108,648.30 and 62,874.20

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Solution

The fourth proportional to 72,626.60, 108,648.30 and 62,874.20 is: 94,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,626.60 : 108,648.30 = 62,874.20 : x
  2. Step 2: Convert to fraction form
    72,626.60/108,648.30 = 62,874.20/x
  3. Step 3: Cross multiply
    72,626.60x = 108,648.30 × 62,874.20
  4. Step 4: Simplify right side
    72,626.60x = 6,831,174,943.86
  5. Step 5: Solve for x
    x = 6,831,174,943.86/72,626.60
  6. Step 6: Final answer
    x = 94,058.86

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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.