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Finding the Fourth Proportional to 72,766.98, 109,208.93 and 37,716.66

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Solution

The fourth proportional to 72,766.98, 109,208.93 and 37,716.66 is: 56,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,766.98 : 109,208.93 = 37,716.66 : x
  2. Step 2: Convert to fraction form
    72,766.98/109,208.93 = 37,716.66/x
  3. Step 3: Cross multiply
    72,766.98x = 109,208.93 × 37,716.66
  4. Step 4: Simplify right side
    72,766.98x = 4,118,996,081.77
  5. Step 5: Solve for x
    x = 4,118,996,081.77/72,766.98
  6. Step 6: Final answer
    x = 56,605.29

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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.