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Finding the Fourth Proportional to 73,642.88, 101,634.24 and 45,365.12

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Solution

The fourth proportional to 73,642.88, 101,634.24 and 45,365.12 is: 62,608.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,642.88 : 101,634.24 = 45,365.12 : x
  2. Step 2: Convert to fraction form
    73,642.88/101,634.24 = 45,365.12/x
  3. Step 3: Cross multiply
    73,642.88x = 101,634.24 × 45,365.12
  4. Step 4: Simplify right side
    73,642.88x = 4,610,649,493.71
  5. Step 5: Solve for x
    x = 4,610,649,493.71/73,642.88
  6. Step 6: Final answer
    x = 62,608.22

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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.