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Finding the Fourth Proportional to 86,472.42, 119,331.99 and 46,728.42

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Solution

The fourth proportional to 86,472.42, 119,331.99 and 46,728.42 is: 64,485.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,472.42 : 119,331.99 = 46,728.42 : x
  2. Step 2: Convert to fraction form
    86,472.42/119,331.99 = 46,728.42/x
  3. Step 3: Cross multiply
    86,472.42x = 119,331.99 × 46,728.42
  4. Step 4: Simplify right side
    86,472.42x = 5,576,195,348.16
  5. Step 5: Solve for x
    x = 5,576,195,348.16/86,472.42
  6. Step 6: Final answer
    x = 64,485.25

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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.