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Finding the Fourth Proportional to 61,175.72, 91,615.95 and 34,800.50

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Solution

The fourth proportional to 61,175.72, 91,615.95 and 34,800.50 is: 52,116.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,175.72 : 91,615.95 = 34,800.50 : x
  2. Step 2: Convert to fraction form
    61,175.72/91,615.95 = 34,800.50/x
  3. Step 3: Cross multiply
    61,175.72x = 91,615.95 × 34,800.50
  4. Step 4: Simplify right side
    61,175.72x = 3,188,280,409.90
  5. Step 5: Solve for x
    x = 3,188,280,409.90/61,175.72
  6. Step 6: Final answer
    x = 52,116.77

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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.