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Finding the Fourth Proportional to 379,538.14, 569,287.77 and 113,300.86

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Solution

The fourth proportional to 379,538.14, 569,287.77 and 113,300.86 is: 169,945.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,538.14 : 569,287.77 = 113,300.86 : x
  2. Step 2: Convert to fraction form
    379,538.14/569,287.77 = 113,300.86/x
  3. Step 3: Cross multiply
    379,538.14x = 569,287.77 × 113,300.86
  4. Step 4: Simplify right side
    379,538.14x = 64,500,793,928.48
  5. Step 5: Solve for x
    x = 64,500,793,928.48/379,538.14
  6. Step 6: Final answer
    x = 169,945.49

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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.