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Finding the Fourth Proportional to 94,975.74, 142,419.87 and 53,422.74

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Solution

The fourth proportional to 94,975.74, 142,419.87 and 53,422.74 is: 80,109.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,975.74 : 142,419.87 = 53,422.74 : x
  2. Step 2: Convert to fraction form
    94,975.74/142,419.87 = 53,422.74/x
  3. Step 3: Cross multiply
    94,975.74x = 142,419.87 × 53,422.74
  4. Step 4: Simplify right side
    94,975.74x = 7,608,459,685.84
  5. Step 5: Solve for x
    x = 7,608,459,685.84/94,975.74
  6. Step 6: Final answer
    x = 80,109.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.