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Finding the Fourth Proportional to 86,174.40, 129,208.68 and 33,522.60

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Solution

The fourth proportional to 86,174.40, 129,208.68 and 33,522.60 is: 50,263.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,174.40 : 129,208.68 = 33,522.60 : x
  2. Step 2: Convert to fraction form
    86,174.40/129,208.68 = 33,522.60/x
  3. Step 3: Cross multiply
    86,174.40x = 129,208.68 × 33,522.60
  4. Step 4: Simplify right side
    86,174.40x = 4,331,410,896.17
  5. Step 5: Solve for x
    x = 4,331,410,896.17/86,174.40
  6. Step 6: Final answer
    x = 50,263.31

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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.