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Finding the Fourth Proportional to 70,174.81, 96,832.83 and 39,960.19

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Solution

The fourth proportional to 70,174.81, 96,832.83 and 39,960.19 is: 55,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,174.81 : 96,832.83 = 39,960.19 : x
  2. Step 2: Convert to fraction form
    70,174.81/96,832.83 = 39,960.19/x
  3. Step 3: Cross multiply
    70,174.81x = 96,832.83 × 39,960.19
  4. Step 4: Simplify right side
    70,174.81x = 3,869,458,285.04
  5. Step 5: Solve for x
    x = 3,869,458,285.04/70,174.81
  6. Step 6: Final answer
    x = 55,140.27

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.