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Finding the Fourth Proportional to 100,771.56, 151,113.60 and 58,693.68

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Solution

The fourth proportional to 100,771.56, 151,113.60 and 58,693.68 is: 88,015.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,771.56 : 151,113.60 = 58,693.68 : x
  2. Step 2: Convert to fraction form
    100,771.56/151,113.60 = 58,693.68/x
  3. Step 3: Cross multiply
    100,771.56x = 151,113.60 × 58,693.68
  4. Step 4: Simplify right side
    100,771.56x = 8,869,413,282.05
  5. Step 5: Solve for x
    x = 8,869,413,282.05/100,771.56
  6. Step 6: Final answer
    x = 88,015.04

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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.