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Finding the Fourth Proportional to 108,785.53, 163,022.77 and 61,941.61

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Solution

The fourth proportional to 108,785.53, 163,022.77 and 61,941.61 is: 92,823.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,785.53 : 163,022.77 = 61,941.61 : x
  2. Step 2: Convert to fraction form
    108,785.53/163,022.77 = 61,941.61/x
  3. Step 3: Cross multiply
    108,785.53x = 163,022.77 × 61,941.61
  4. Step 4: Simplify right side
    108,785.53x = 10,097,892,840.46
  5. Step 5: Solve for x
    x = 10,097,892,840.46/108,785.53
  6. Step 6: Final answer
    x = 92,823.86

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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.