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Finding the Fourth Proportional to 75,726.94, 104,503.60 and 43,914.72

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Solution

The fourth proportional to 75,726.94, 104,503.60 and 43,914.72 is: 60,602.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,726.94 : 104,503.60 = 43,914.72 : x
  2. Step 2: Convert to fraction form
    75,726.94/104,503.60 = 43,914.72/x
  3. Step 3: Cross multiply
    75,726.94x = 104,503.60 × 43,914.72
  4. Step 4: Simplify right side
    75,726.94x = 4,589,246,332.99
  5. Step 5: Solve for x
    x = 4,589,246,332.99/75,726.94
  6. Step 6: Final answer
    x = 60,602.56

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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.