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Finding the Fourth Proportional to 85,889.83, 118,450.31 and 53,627.36

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Solution

The fourth proportional to 85,889.83, 118,450.31 and 53,627.36 is: 73,957.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,889.83 : 118,450.31 = 53,627.36 : x
  2. Step 2: Convert to fraction form
    85,889.83/118,450.31 = 53,627.36/x
  3. Step 3: Cross multiply
    85,889.83x = 118,450.31 × 53,627.36
  4. Step 4: Simplify right side
    85,889.83x = 6,352,177,645.57
  5. Step 5: Solve for x
    x = 6,352,177,645.57/85,889.83
  6. Step 6: Final answer
    x = 73,957.27

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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.