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Finding the Fourth Proportional to 73,720.74, 101,724.36 and 43,507.32

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Solution

The fourth proportional to 73,720.74, 101,724.36 and 43,507.32 is: 60,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,720.74 : 101,724.36 = 43,507.32 : x
  2. Step 2: Convert to fraction form
    73,720.74/101,724.36 = 43,507.32/x
  3. Step 3: Cross multiply
    73,720.74x = 101,724.36 × 43,507.32
  4. Step 4: Simplify right side
    73,720.74x = 4,425,754,282.32
  5. Step 5: Solve for x
    x = 4,425,754,282.32/73,720.74
  6. Step 6: Final answer
    x = 60,034.05

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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.