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Finding the Fourth Proportional to 93,179.25, 139,790.75 and 30,849.75

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Solution

The fourth proportional to 93,179.25, 139,790.75 and 30,849.75 is: 46,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,179.25 : 139,790.75 = 30,849.75 : x
  2. Step 2: Convert to fraction form
    93,179.25/139,790.75 = 30,849.75/x
  3. Step 3: Cross multiply
    93,179.25x = 139,790.75 × 30,849.75
  4. Step 4: Simplify right side
    93,179.25x = 4,312,509,535.56
  5. Step 5: Solve for x
    x = 4,312,509,535.56/93,179.25
  6. Step 6: Final answer
    x = 46,281.87

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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.