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Finding the Fourth Proportional to 115,254.54, 172,786.77 and 36,319.50

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Solution

The fourth proportional to 115,254.54, 172,786.77 and 36,319.50 is: 54,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,254.54 : 172,786.77 = 36,319.50 : x
  2. Step 2: Convert to fraction form
    115,254.54/172,786.77 = 36,319.50/x
  3. Step 3: Cross multiply
    115,254.54x = 172,786.77 × 36,319.50
  4. Step 4: Simplify right side
    115,254.54x = 6,275,529,093.02
  5. Step 5: Solve for x
    x = 6,275,529,093.02/115,254.54
  6. Step 6: Final answer
    x = 54,449.30

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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.