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Finding the Fourth Proportional to 78,810.60, 108,754.34 and 44,814.50

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Solution

The fourth proportional to 78,810.60, 108,754.34 and 44,814.50 is: 61,841.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,810.60 : 108,754.34 = 44,814.50 : x
  2. Step 2: Convert to fraction form
    78,810.60/108,754.34 = 44,814.50/x
  3. Step 3: Cross multiply
    78,810.60x = 108,754.34 × 44,814.50
  4. Step 4: Simplify right side
    78,810.60x = 4,873,770,602.09
  5. Step 5: Solve for x
    x = 4,873,770,602.09/78,810.60
  6. Step 6: Final answer
    x = 61,841.56

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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.