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Finding the Fourth Proportional to 85,921, 118,569.52 and 48,194.44

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Solution

The fourth proportional to 85,921, 118,569.52 and 48,194.44 is: 66,507.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,921 : 118,569.52 = 48,194.44 : x
  2. Step 2: Convert to fraction form
    85,921/118,569.52 = 48,194.44/x
  3. Step 3: Cross multiply
    85,921x = 118,569.52 × 48,194.44
  4. Step 4: Simplify right side
    85,921x = 5,714,391,617.47
  5. Step 5: Solve for x
    x = 5,714,391,617.47/85,921
  6. Step 6: Final answer
    x = 66,507.51

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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.