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Finding the Fourth Proportional to 124,577.88, 186,755.70 and 45,673.70

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Solution

The fourth proportional to 124,577.88, 186,755.70 and 45,673.70 is: 68,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,577.88 : 186,755.70 = 45,673.70 : x
  2. Step 2: Convert to fraction form
    124,577.88/186,755.70 = 45,673.70/x
  3. Step 3: Cross multiply
    124,577.88x = 186,755.70 × 45,673.70
  4. Step 4: Simplify right side
    124,577.88x = 8,529,823,815.09
  5. Step 5: Solve for x
    x = 8,529,823,815.09/124,577.88
  6. Step 6: Final answer
    x = 68,469.81

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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.