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Finding the Fourth Proportional to 85,970.25, 118,644.21 and 48,244.50

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Solution

The fourth proportional to 85,970.25, 118,644.21 and 48,244.50 is: 66,580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,970.25 : 118,644.21 = 48,244.50 : x
  2. Step 2: Convert to fraction form
    85,970.25/118,644.21 = 48,244.50/x
  3. Step 3: Cross multiply
    85,970.25x = 118,644.21 × 48,244.50
  4. Step 4: Simplify right side
    85,970.25x = 5,723,930,589.35
  5. Step 5: Solve for x
    x = 5,723,930,589.35/85,970.25
  6. Step 6: Final answer
    x = 66,580.36

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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.