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Finding the Fourth Proportional to 70,787.57, 106,181.22 and 48,533.48

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Solution

The fourth proportional to 70,787.57, 106,181.22 and 48,533.48 is: 72,800.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,787.57 : 106,181.22 = 48,533.48 : x
  2. Step 2: Convert to fraction form
    70,787.57/106,181.22 = 48,533.48/x
  3. Step 3: Cross multiply
    70,787.57x = 106,181.22 × 48,533.48
  4. Step 4: Simplify right side
    70,787.57x = 5,153,343,586.34
  5. Step 5: Solve for x
    x = 5,153,343,586.34/70,787.57
  6. Step 6: Final answer
    x = 72,800.13

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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.