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Finding the Fourth Proportional to 73,571.91, 101,335.86 and 56,543.59

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Solution

The fourth proportional to 73,571.91, 101,335.86 and 56,543.59 is: 77,881.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,571.91 : 101,335.86 = 56,543.59 : x
  2. Step 2: Convert to fraction form
    73,571.91/101,335.86 = 56,543.59/x
  3. Step 3: Cross multiply
    73,571.91x = 101,335.86 × 56,543.59
  4. Step 4: Simplify right side
    73,571.91x = 5,729,893,320.14
  5. Step 5: Solve for x
    x = 5,729,893,320.14/73,571.91
  6. Step 6: Final answer
    x = 77,881.54

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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.