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Finding the Fourth Proportional to 78,773.66, 108,688.95 and 44,779.46

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Solution

The fourth proportional to 78,773.66, 108,688.95 and 44,779.46 is: 61,785.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,773.66 : 108,688.95 = 44,779.46 : x
  2. Step 2: Convert to fraction form
    78,773.66/108,688.95 = 44,779.46/x
  3. Step 3: Cross multiply
    78,773.66x = 108,688.95 × 44,779.46
  4. Step 4: Simplify right side
    78,773.66x = 4,867,032,488.97
  5. Step 5: Solve for x
    x = 4,867,032,488.97/78,773.66
  6. Step 6: Final answer
    x = 61,785.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.