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Finding the Fourth Proportional to 61,265.35, 91,943.79 and 45,506.80

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Solution

The fourth proportional to 61,265.35, 91,943.79 and 45,506.80 is: 68,294.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,265.35 : 91,943.79 = 45,506.80 : x
  2. Step 2: Convert to fraction form
    61,265.35/91,943.79 = 45,506.80/x
  3. Step 3: Cross multiply
    61,265.35x = 91,943.79 × 45,506.80
  4. Step 4: Simplify right side
    61,265.35x = 4,184,067,662.77
  5. Step 5: Solve for x
    x = 4,184,067,662.77/61,265.35
  6. Step 6: Final answer
    x = 68,294.19

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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.