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Finding the Fourth Proportional to 77,373.56, 106,777.14 and 43,839.56

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Solution

The fourth proportional to 77,373.56, 106,777.14 and 43,839.56 is: 60,499.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,373.56 : 106,777.14 = 43,839.56 : x
  2. Step 2: Convert to fraction form
    77,373.56/106,777.14 = 43,839.56/x
  3. Step 3: Cross multiply
    77,373.56x = 106,777.14 × 43,839.56
  4. Step 4: Simplify right side
    77,373.56x = 4,681,062,938.20
  5. Step 5: Solve for x
    x = 4,681,062,938.20/77,373.56
  6. Step 6: Final answer
    x = 60,499.51

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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.