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Finding the Fourth Proportional to 75,125.67, 103,669.48 and 41,127.64

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Solution

The fourth proportional to 75,125.67, 103,669.48 and 41,127.64 is: 56,753.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,125.67 : 103,669.48 = 41,127.64 : x
  2. Step 2: Convert to fraction form
    75,125.67/103,669.48 = 41,127.64/x
  3. Step 3: Cross multiply
    75,125.67x = 103,669.48 × 41,127.64
  4. Step 4: Simplify right side
    75,125.67x = 4,263,681,052.43
  5. Step 5: Solve for x
    x = 4,263,681,052.43/75,125.67
  6. Step 6: Final answer
    x = 56,753.98

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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.