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Finding the Fourth Proportional to 68,804.57, 103,221.44 and 22,090.25

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Solution

The fourth proportional to 68,804.57, 103,221.44 and 22,090.25 is: 33,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,804.57 : 103,221.44 = 22,090.25 : x
  2. Step 2: Convert to fraction form
    68,804.57/103,221.44 = 22,090.25/x
  3. Step 3: Cross multiply
    68,804.57x = 103,221.44 × 22,090.25
  4. Step 4: Simplify right side
    68,804.57x = 2,280,186,788.40
  5. Step 5: Solve for x
    x = 2,280,186,788.40/68,804.57
  6. Step 6: Final answer
    x = 33,140.05

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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.