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Finding the Fourth Proportional to 89,577.92, 123,629.60 and 51,352.64

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Solution

The fourth proportional to 89,577.92, 123,629.60 and 51,352.64 is: 70,873.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,577.92 : 123,629.60 = 51,352.64 : x
  2. Step 2: Convert to fraction form
    89,577.92/123,629.60 = 51,352.64/x
  3. Step 3: Cross multiply
    89,577.92x = 123,629.60 × 51,352.64
  4. Step 4: Simplify right side
    89,577.92x = 6,348,706,342.14
  5. Step 5: Solve for x
    x = 6,348,706,342.14/89,577.92
  6. Step 6: Final answer
    x = 70,873.56

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1.5x scale

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.