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Finding the Fourth Proportional to 69,322.13, 103,481.73 and 60,914.60

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Solution

The fourth proportional to 69,322.13, 103,481.73 and 60,914.60 is: 90,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,322.13 : 103,481.73 = 60,914.60 : x
  2. Step 2: Convert to fraction form
    69,322.13/103,481.73 = 60,914.60/x
  3. Step 3: Cross multiply
    69,322.13x = 103,481.73 × 60,914.60
  4. Step 4: Simplify right side
    69,322.13x = 6,303,548,190.26
  5. Step 5: Solve for x
    x = 6,303,548,190.26/69,322.13
  6. Step 6: Final answer
    x = 90,931.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.