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Finding the Fourth Proportional to 78,764.54, 108,697.79 and 44,774.45

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Solution

The fourth proportional to 78,764.54, 108,697.79 and 44,774.45 is: 61,790.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,764.54 : 108,697.79 = 44,774.45 : x
  2. Step 2: Convert to fraction form
    78,764.54/108,697.79 = 44,774.45/x
  3. Step 3: Cross multiply
    78,764.54x = 108,697.79 × 44,774.45
  4. Step 4: Simplify right side
    78,764.54x = 4,866,883,763.47
  5. Step 5: Solve for x
    x = 4,866,883,763.47/78,764.54
  6. Step 6: Final answer
    x = 61,790.29

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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.