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Finding the Fourth Proportional to 61,607.48, 92,401.62 and 20,054.20

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Solution

The fourth proportional to 61,607.48, 92,401.62 and 20,054.20 is: 30,078.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,607.48 : 92,401.62 = 20,054.20 : x
  2. Step 2: Convert to fraction form
    61,607.48/92,401.62 = 20,054.20/x
  3. Step 3: Cross multiply
    61,607.48x = 92,401.62 × 20,054.20
  4. Step 4: Simplify right side
    61,607.48x = 1,853,040,567.80
  5. Step 5: Solve for x
    x = 1,853,040,567.80/61,607.48
  6. Step 6: Final answer
    x = 30,078.18

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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.