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Finding the Fourth Proportional to 56,787.48, 85,256.58 and 48,520.62

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Solution

The fourth proportional to 56,787.48, 85,256.58 and 48,520.62 is: 72,845.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,787.48 : 85,256.58 = 48,520.62 : x
  2. Step 2: Convert to fraction form
    56,787.48/85,256.58 = 48,520.62/x
  3. Step 3: Cross multiply
    56,787.48x = 85,256.58 × 48,520.62
  4. Step 4: Simplify right side
    56,787.48x = 4,136,702,120.68
  5. Step 5: Solve for x
    x = 4,136,702,120.68/56,787.48
  6. Step 6: Final answer
    x = 72,845.32

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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.