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Finding the Fourth Proportional to 75,132.93, 103,679.49 and 41,134.89

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Solution

The fourth proportional to 75,132.93, 103,679.49 and 41,134.89 is: 56,763.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,132.93 : 103,679.49 = 41,134.89 : x
  2. Step 2: Convert to fraction form
    75,132.93/103,679.49 = 41,134.89/x
  3. Step 3: Cross multiply
    75,132.93x = 103,679.49 × 41,134.89
  4. Step 4: Simplify right side
    75,132.93x = 4,264,844,416.41
  5. Step 5: Solve for x
    x = 4,264,844,416.41/75,132.93
  6. Step 6: Final answer
    x = 56,763.98

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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.