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Finding the Fourth Proportional to 124,494.44, 186,426.26 and 77,201.88

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Solution

The fourth proportional to 124,494.44, 186,426.26 and 77,201.88 is: 115,607.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,494.44 : 186,426.26 = 77,201.88 : x
  2. Step 2: Convert to fraction form
    124,494.44/186,426.26 = 77,201.88/x
  3. Step 3: Cross multiply
    124,494.44x = 186,426.26 × 77,201.88
  4. Step 4: Simplify right side
    124,494.44x = 14,392,457,753.37
  5. Step 5: Solve for x
    x = 14,392,457,753.37/124,494.44
  6. Step 6: Final answer
    x = 115,607.23

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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.