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Finding the Fourth Proportional to 72,574.94, 108,807.02 and 41,020.64

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Solution

The fourth proportional to 72,574.94, 108,807.02 and 41,020.64 is: 61,499.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,574.94 : 108,807.02 = 41,020.64 : x
  2. Step 2: Convert to fraction form
    72,574.94/108,807.02 = 41,020.64/x
  3. Step 3: Cross multiply
    72,574.94x = 108,807.02 × 41,020.64
  4. Step 4: Simplify right side
    72,574.94x = 4,463,332,847.75
  5. Step 5: Solve for x
    x = 4,463,332,847.75/72,574.94
  6. Step 6: Final answer
    x = 61,499.64

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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.