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Finding the Fourth Proportional to 85,757.93, 118,308.23 and 51,747.46

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Solution

The fourth proportional to 85,757.93, 118,308.23 and 51,747.46 is: 71,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,757.93 : 118,308.23 = 51,747.46 : x
  2. Step 2: Convert to fraction form
    85,757.93/118,308.23 = 51,747.46/x
  3. Step 3: Cross multiply
    85,757.93x = 118,308.23 × 51,747.46
  4. Step 4: Simplify right side
    85,757.93x = 6,122,149,549.32
  5. Step 5: Solve for x
    x = 6,122,149,549.32/85,757.93
  6. Step 6: Final answer
    x = 71,388.73

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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.