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Finding the Fourth Proportional to 50,073.18, 75,104.90 and 13,137.18

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Solution

The fourth proportional to 50,073.18, 75,104.90 and 13,137.18 is: 19,704.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,073.18 : 75,104.90 = 13,137.18 : x
  2. Step 2: Convert to fraction form
    50,073.18/75,104.90 = 13,137.18/x
  3. Step 3: Cross multiply
    50,073.18x = 75,104.90 × 13,137.18
  4. Step 4: Simplify right side
    50,073.18x = 986,666,590.18
  5. Step 5: Solve for x
    x = 986,666,590.18/50,073.18
  6. Step 6: Final answer
    x = 19,704.49

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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.