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Finding the Fourth Proportional to 78,003.95, 107,645.49 and 44,019.68

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Solution

The fourth proportional to 78,003.95, 107,645.49 and 44,019.68 is: 60,747.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,003.95 : 107,645.49 = 44,019.68 : x
  2. Step 2: Convert to fraction form
    78,003.95/107,645.49 = 44,019.68/x
  3. Step 3: Cross multiply
    78,003.95x = 107,645.49 × 44,019.68
  4. Step 4: Simplify right side
    78,003.95x = 4,738,519,485.02
  5. Step 5: Solve for x
    x = 4,738,519,485.02/78,003.95
  6. Step 6: Final answer
    x = 60,747.18

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1.5x scale

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.