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Finding the Fourth Proportional to 61,368.44, 92,120.98 and 31,778.32

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Solution

The fourth proportional to 61,368.44, 92,120.98 and 31,778.32 is: 47,702.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,368.44 : 92,120.98 = 31,778.32 : x
  2. Step 2: Convert to fraction form
    61,368.44/92,120.98 = 31,778.32/x
  3. Step 3: Cross multiply
    61,368.44x = 92,120.98 × 31,778.32
  4. Step 4: Simplify right side
    61,368.44x = 2,927,449,981.15
  5. Step 5: Solve for x
    x = 2,927,449,981.15/61,368.44
  6. Step 6: Final answer
    x = 47,702.86

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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.