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Finding the Fourth Proportional to 117,737.76, 176,673.60 and 67,889.28

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Solution

The fourth proportional to 117,737.76, 176,673.60 and 67,889.28 is: 101,872.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,737.76 : 176,673.60 = 67,889.28 : x
  2. Step 2: Convert to fraction form
    117,737.76/176,673.60 = 67,889.28/x
  3. Step 3: Cross multiply
    117,737.76x = 176,673.60 × 67,889.28
  4. Step 4: Simplify right side
    117,737.76x = 11,994,243,499.01
  5. Step 5: Solve for x
    x = 11,994,243,499.01/117,737.76
  6. Step 6: Final answer
    x = 101,872.53

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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.