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Finding the Fourth Proportional to 100,830.60, 151,245.90 and 41,708.70

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Solution

The fourth proportional to 100,830.60, 151,245.90 and 41,708.70 is: 62,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,830.60 : 151,245.90 = 41,708.70 : x
  2. Step 2: Convert to fraction form
    100,830.60/151,245.90 = 41,708.70/x
  3. Step 3: Cross multiply
    100,830.60x = 151,245.90 × 41,708.70
  4. Step 4: Simplify right side
    100,830.60x = 6,308,269,869.33
  5. Step 5: Solve for x
    x = 6,308,269,869.33/100,830.60
  6. Step 6: Final answer
    x = 62,563.05

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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.