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Finding the Fourth Proportional to 93,251.21, 139,998.76 and 55,369.65

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Solution

The fourth proportional to 93,251.21, 139,998.76 and 55,369.65 is: 83,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,251.21 : 139,998.76 = 55,369.65 : x
  2. Step 2: Convert to fraction form
    93,251.21/139,998.76 = 55,369.65/x
  3. Step 3: Cross multiply
    93,251.21x = 139,998.76 × 55,369.65
  4. Step 4: Simplify right side
    93,251.21x = 7,751,682,064.79
  5. Step 5: Solve for x
    x = 7,751,682,064.79/93,251.21
  6. Step 6: Final answer
    x = 83,126.88

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1.5x scale

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.