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Finding the Fourth Proportional to 117,692.76, 162,376.48 and 66,701.49

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Solution

The fourth proportional to 117,692.76, 162,376.48 and 66,701.49 is: 92,025.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,692.76 : 162,376.48 = 66,701.49 : x
  2. Step 2: Convert to fraction form
    117,692.76/162,376.48 = 66,701.49/x
  3. Step 3: Cross multiply
    117,692.76x = 162,376.48 × 66,701.49
  4. Step 4: Simplify right side
    117,692.76x = 10,830,753,323.71
  5. Step 5: Solve for x
    x = 10,830,753,323.71/117,692.76
  6. Step 6: Final answer
    x = 92,025.65

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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.