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Finding the Fourth Proportional to 101,889.41, 140,611.93 and 56,568.02

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Solution

The fourth proportional to 101,889.41, 140,611.93 and 56,568.02 is: 78,066.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,889.41 : 140,611.93 = 56,568.02 : x
  2. Step 2: Convert to fraction form
    101,889.41/140,611.93 = 56,568.02/x
  3. Step 3: Cross multiply
    101,889.41x = 140,611.93 × 56,568.02
  4. Step 4: Simplify right side
    101,889.41x = 7,954,138,678.59
  5. Step 5: Solve for x
    x = 7,954,138,678.59/101,889.41
  6. Step 6: Final answer
    x = 78,066.39

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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.