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Finding the Fourth Proportional to 117,490.87, 176,178.46 and 42,599.82

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Solution

The fourth proportional to 117,490.87, 176,178.46 and 42,599.82 is: 63,878.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,490.87 : 176,178.46 = 42,599.82 : x
  2. Step 2: Convert to fraction form
    117,490.87/176,178.46 = 42,599.82/x
  3. Step 3: Cross multiply
    117,490.87x = 176,178.46 × 42,599.82
  4. Step 4: Simplify right side
    117,490.87x = 7,505,170,683.88
  5. Step 5: Solve for x
    x = 7,505,170,683.88/117,490.87
  6. Step 6: Final answer
    x = 63,878.76

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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.