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Finding the Fourth Proportional to 61,173.84, 91,698.80 and 41,454.40

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Solution

The fourth proportional to 61,173.84, 91,698.80 and 41,454.40 is: 62,139.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,173.84 : 91,698.80 = 41,454.40 : x
  2. Step 2: Convert to fraction form
    61,173.84/91,698.80 = 41,454.40/x
  3. Step 3: Cross multiply
    61,173.84x = 91,698.80 × 41,454.40
  4. Step 4: Simplify right side
    61,173.84x = 3,801,318,734.72
  5. Step 5: Solve for x
    x = 3,801,318,734.72/61,173.84
  6. Step 6: Final answer
    x = 62,139.61

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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.