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Finding the Fourth Proportional to 85,662.50, 118,209.92 and 46,899.27

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Solution

The fourth proportional to 85,662.50, 118,209.92 and 46,899.27 is: 64,718.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,662.50 : 118,209.92 = 46,899.27 : x
  2. Step 2: Convert to fraction form
    85,662.50/118,209.92 = 46,899.27/x
  3. Step 3: Cross multiply
    85,662.50x = 118,209.92 × 46,899.27
  4. Step 4: Simplify right side
    85,662.50x = 5,543,958,720.26
  5. Step 5: Solve for x
    x = 5,543,958,720.26/85,662.50
  6. Step 6: Final answer
    x = 64,718.62

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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.