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Finding the Fourth Proportional to 93,405.72, 140,149.65 and 49,022.07

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Solution

The fourth proportional to 93,405.72, 140,149.65 and 49,022.07 is: 73,554.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,405.72 : 140,149.65 = 49,022.07 : x
  2. Step 2: Convert to fraction form
    93,405.72/140,149.65 = 49,022.07/x
  3. Step 3: Cross multiply
    93,405.72x = 140,149.65 × 49,022.07
  4. Step 4: Simplify right side
    93,405.72x = 6,870,425,952.78
  5. Step 5: Solve for x
    x = 6,870,425,952.78/93,405.72
  6. Step 6: Final answer
    x = 73,554.66

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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.