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Finding the Fourth Proportional to 117,986.44, 162,820.02 and 67,693.32

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Solution

The fourth proportional to 117,986.44, 162,820.02 and 67,693.32 is: 93,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,986.44 : 162,820.02 = 67,693.32 : x
  2. Step 2: Convert to fraction form
    117,986.44/162,820.02 = 67,693.32/x
  3. Step 3: Cross multiply
    117,986.44x = 162,820.02 × 67,693.32
  4. Step 4: Simplify right side
    117,986.44x = 11,021,827,716.27
  5. Step 5: Solve for x
    x = 11,021,827,716.27/117,986.44
  6. Step 6: Final answer
    x = 93,416.05

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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.