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Finding the Fourth Proportional to 115,317.28, 172,664.32 and 59,796.64

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Solution

The fourth proportional to 115,317.28, 172,664.32 and 59,796.64 is: 89,533.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,317.28 : 172,664.32 = 59,796.64 : x
  2. Step 2: Convert to fraction form
    115,317.28/172,664.32 = 59,796.64/x
  3. Step 3: Cross multiply
    115,317.28x = 172,664.32 × 59,796.64
  4. Step 4: Simplify right side
    115,317.28x = 10,324,746,183.88
  5. Step 5: Solve for x
    x = 10,324,746,183.88/115,317.28
  6. Step 6: Final answer
    x = 89,533.38

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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.