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Finding the Fourth Proportional to 93,222.36, 139,787.77 and 39,906.81

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Solution

The fourth proportional to 93,222.36, 139,787.77 and 39,906.81 is: 59,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,222.36 : 139,787.77 = 39,906.81 : x
  2. Step 2: Convert to fraction form
    93,222.36/139,787.77 = 39,906.81/x
  3. Step 3: Cross multiply
    93,222.36x = 139,787.77 × 39,906.81
  4. Step 4: Simplify right side
    93,222.36x = 5,578,483,977.71
  5. Step 5: Solve for x
    x = 5,578,483,977.71/93,222.36
  6. Step 6: Final answer
    x = 59,840.62

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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.