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Finding the Fourth Proportional to 104,131.88, 156,203.87 and 29,257.86

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Solution

The fourth proportional to 104,131.88, 156,203.87 and 29,257.86 is: 43,888.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,131.88 : 156,203.87 = 29,257.86 : x
  2. Step 2: Convert to fraction form
    104,131.88/156,203.87 = 29,257.86/x
  3. Step 3: Cross multiply
    104,131.88x = 156,203.87 × 29,257.86
  4. Step 4: Simplify right side
    104,131.88x = 4,570,190,813.63
  5. Step 5: Solve for x
    x = 4,570,190,813.63/104,131.88
  6. Step 6: Final answer
    x = 43,888.49

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1.5x scale

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.