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Finding the Fourth Proportional to 117,763.76, 176,692.83 and 42,889.12

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Solution

The fourth proportional to 117,763.76, 176,692.83 and 42,889.12 is: 64,350.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,763.76 : 176,692.83 = 42,889.12 : x
  2. Step 2: Convert to fraction form
    117,763.76/176,692.83 = 42,889.12/x
  3. Step 3: Cross multiply
    117,763.76x = 176,692.83 × 42,889.12
  4. Step 4: Simplify right side
    117,763.76x = 7,578,199,989.01
  5. Step 5: Solve for x
    x = 7,578,199,989.01/117,763.76
  6. Step 6: Final answer
    x = 64,350.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.