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Finding the Fourth Proportional to 85,596.52, 118,073.70 and 51,581.80

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Solution

The fourth proportional to 85,596.52, 118,073.70 and 51,581.80 is: 71,153.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,596.52 : 118,073.70 = 51,581.80 : x
  2. Step 2: Convert to fraction form
    85,596.52/118,073.70 = 51,581.80/x
  3. Step 3: Cross multiply
    85,596.52x = 118,073.70 × 51,581.80
  4. Step 4: Simplify right side
    85,596.52x = 6,090,453,978.66
  5. Step 5: Solve for x
    x = 6,090,453,978.66/85,596.52
  6. Step 6: Final answer
    x = 71,153.06

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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.