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Finding the Fourth Proportional to 74,809.50, 103,239.27 and 41,277.66

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Solution

The fourth proportional to 74,809.50, 103,239.27 and 41,277.66 is: 56,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,809.50 : 103,239.27 = 41,277.66 : x
  2. Step 2: Convert to fraction form
    74,809.50/103,239.27 = 41,277.66/x
  3. Step 3: Cross multiply
    74,809.50x = 103,239.27 × 41,277.66
  4. Step 4: Simplify right side
    74,809.50x = 4,261,475,485.71
  5. Step 5: Solve for x
    x = 4,261,475,485.71/74,809.50
  6. Step 6: Final answer
    x = 56,964.36

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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.