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Finding the Fourth Proportional to 85,963.66, 118,629.90 and 48,237.90

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Solution

The fourth proportional to 85,963.66, 118,629.90 and 48,237.90 is: 66,568.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,963.66 : 118,629.90 = 48,237.90 : x
  2. Step 2: Convert to fraction form
    85,963.66/118,629.90 = 48,237.90/x
  3. Step 3: Cross multiply
    85,963.66x = 118,629.90 × 48,237.90
  4. Step 4: Simplify right side
    85,963.66x = 5,722,457,253.21
  5. Step 5: Solve for x
    x = 5,722,457,253.21/85,963.66
  6. Step 6: Final answer
    x = 66,568.33

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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.