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Finding the Fourth Proportional to 86,871.98, 130,224.74 and 27,669.28

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Solution

The fourth proportional to 86,871.98, 130,224.74 and 27,669.28 is: 41,477.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,871.98 : 130,224.74 = 27,669.28 : x
  2. Step 2: Convert to fraction form
    86,871.98/130,224.74 = 27,669.28/x
  3. Step 3: Cross multiply
    86,871.98x = 130,224.74 × 27,669.28
  4. Step 4: Simplify right side
    86,871.98x = 3,603,224,793.99
  5. Step 5: Solve for x
    x = 3,603,224,793.99/86,871.98
  6. Step 6: Final answer
    x = 41,477.41

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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.