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Finding the Fourth Proportional to 76,562.57, 105,621.91 and 44,712.56

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Solution

The fourth proportional to 76,562.57, 105,621.91 and 44,712.56 is: 61,683.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,562.57 : 105,621.91 = 44,712.56 : x
  2. Step 2: Convert to fraction form
    76,562.57/105,621.91 = 44,712.56/x
  3. Step 3: Cross multiply
    76,562.57x = 105,621.91 × 44,712.56
  4. Step 4: Simplify right side
    76,562.57x = 4,722,626,140.46
  5. Step 5: Solve for x
    x = 4,722,626,140.46/76,562.57
  6. Step 6: Final answer
    x = 61,683.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.