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Finding the Fourth Proportional to 93,431.65, 140,191.22 and 40,834.30

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Solution

The fourth proportional to 93,431.65, 140,191.22 and 40,834.30 is: 61,270.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,431.65 : 140,191.22 = 40,834.30 : x
  2. Step 2: Convert to fraction form
    93,431.65/140,191.22 = 40,834.30/x
  3. Step 3: Cross multiply
    93,431.65x = 140,191.22 × 40,834.30
  4. Step 4: Simplify right side
    93,431.65x = 5,724,610,334.85
  5. Step 5: Solve for x
    x = 5,724,610,334.85/93,431.65
  6. Step 6: Final answer
    x = 61,270.57

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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.