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Finding the Fourth Proportional to 85,874.44, 118,509.06 and 48,147.88

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Solution

The fourth proportional to 85,874.44, 118,509.06 and 48,147.88 is: 66,445.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,874.44 : 118,509.06 = 48,147.88 : x
  2. Step 2: Convert to fraction form
    85,874.44/118,509.06 = 48,147.88/x
  3. Step 3: Cross multiply
    85,874.44x = 118,509.06 × 48,147.88
  4. Step 4: Simplify right side
    85,874.44x = 5,705,959,999.79
  5. Step 5: Solve for x
    x = 5,705,959,999.79/85,874.44
  6. Step 6: Final answer
    x = 66,445.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.