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Finding the Fourth Proportional to 93,200.70, 139,509.45 and 73,371.90

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Solution

The fourth proportional to 93,200.70, 139,509.45 and 73,371.90 is: 109,828.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,200.70 : 139,509.45 = 73,371.90 : x
  2. Step 2: Convert to fraction form
    93,200.70/139,509.45 = 73,371.90/x
  3. Step 3: Cross multiply
    93,200.70x = 139,509.45 × 73,371.90
  4. Step 4: Simplify right side
    93,200.70x = 10,236,073,414.46
  5. Step 5: Solve for x
    x = 10,236,073,414.46/93,200.70
  6. Step 6: Final answer
    x = 109,828.29

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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.