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Finding the Fourth Proportional to 85,992.03, 118,669.46 and 48,266.28

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Solution

The fourth proportional to 85,992.03, 118,669.46 and 48,266.28 is: 66,607.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,992.03 : 118,669.46 = 48,266.28 : x
  2. Step 2: Convert to fraction form
    85,992.03/118,669.46 = 48,266.28/x
  3. Step 3: Cross multiply
    85,992.03x = 118,669.46 × 48,266.28
  4. Step 4: Simplify right side
    85,992.03x = 5,727,733,142.48
  5. Step 5: Solve for x
    x = 5,727,733,142.48/85,992.03
  6. Step 6: Final answer
    x = 66,607.72

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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.