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Finding the Fourth Proportional to 78,360.48, 108,137.45 and 44,826.48

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Solution

The fourth proportional to 78,360.48, 108,137.45 and 44,826.48 is: 61,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,360.48 : 108,137.45 = 44,826.48 : x
  2. Step 2: Convert to fraction form
    78,360.48/108,137.45 = 44,826.48/x
  3. Step 3: Cross multiply
    78,360.48x = 108,137.45 × 44,826.48
  4. Step 4: Simplify right side
    78,360.48x = 4,847,421,351.74
  5. Step 5: Solve for x
    x = 4,847,421,351.74/78,360.48
  6. Step 6: Final answer
    x = 61,860.54

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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.