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Finding the Fourth Proportional to 117,661.44, 162,386.60 and 69,914.82

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Solution

The fourth proportional to 117,661.44, 162,386.60 and 69,914.82 is: 96,490.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,661.44 : 162,386.60 = 69,914.82 : x
  2. Step 2: Convert to fraction form
    117,661.44/162,386.60 = 69,914.82/x
  3. Step 3: Cross multiply
    117,661.44x = 162,386.60 × 69,914.82
  4. Step 4: Simplify right side
    117,661.44x = 11,353,229,909.41
  5. Step 5: Solve for x
    x = 11,353,229,909.41/117,661.44
  6. Step 6: Final answer
    x = 96,490.66

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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.