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Finding the Fourth Proportional to 93,015.53, 139,438.92 and 33,809.39

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Solution

The fourth proportional to 93,015.53, 139,438.92 and 33,809.39 is: 50,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,015.53 : 139,438.92 = 33,809.39 : x
  2. Step 2: Convert to fraction form
    93,015.53/139,438.92 = 33,809.39/x
  3. Step 3: Cross multiply
    93,015.53x = 139,438.92 × 33,809.39
  4. Step 4: Simplify right side
    93,015.53x = 4,714,344,827.46
  5. Step 5: Solve for x
    x = 4,714,344,827.46/93,015.53
  6. Step 6: Final answer
    x = 50,683.42

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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.