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Finding the Fourth Proportional to 72,596.98, 108,640.32 and 44,509.42

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Solution

The fourth proportional to 72,596.98, 108,640.32 and 44,509.42 is: 66,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,596.98 : 108,640.32 = 44,509.42 : x
  2. Step 2: Convert to fraction form
    72,596.98/108,640.32 = 44,509.42/x
  3. Step 3: Cross multiply
    72,596.98x = 108,640.32 × 44,509.42
  4. Step 4: Simplify right side
    72,596.98x = 4,835,517,631.81
  5. Step 5: Solve for x
    x = 4,835,517,631.81/72,596.98
  6. Step 6: Final answer
    x = 66,607.70

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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.