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Finding the Fourth Proportional to 78,826.66, 108,783.17 and 44,840.03

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Solution

The fourth proportional to 78,826.66, 108,783.17 and 44,840.03 is: 61,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,826.66 : 108,783.17 = 44,840.03 : x
  2. Step 2: Convert to fraction form
    78,826.66/108,783.17 = 44,840.03/x
  3. Step 3: Cross multiply
    78,826.66x = 108,783.17 × 44,840.03
  4. Step 4: Simplify right side
    78,826.66x = 4,877,840,174.48
  5. Step 5: Solve for x
    x = 4,877,840,174.48/78,826.66
  6. Step 6: Final answer
    x = 61,880.59

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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.