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Finding the Fourth Proportional to 93,898.64, 140,660.30 and 56,438.44

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Solution

The fourth proportional to 93,898.64, 140,660.30 and 56,438.44 is: 84,544.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,898.64 : 140,660.30 = 56,438.44 : x
  2. Step 2: Convert to fraction form
    93,898.64/140,660.30 = 56,438.44/x
  3. Step 3: Cross multiply
    93,898.64x = 140,660.30 × 56,438.44
  4. Step 4: Simplify right side
    93,898.64x = 7,938,647,901.93
  5. Step 5: Solve for x
    x = 7,938,647,901.93/93,898.64
  6. Step 6: Final answer
    x = 84,544.87

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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.