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Finding the Fourth Proportional to 77,449.32, 116,186.13 and 33,076.32

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Solution

The fourth proportional to 77,449.32, 116,186.13 and 33,076.32 is: 49,619.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,449.32 : 116,186.13 = 33,076.32 : x
  2. Step 2: Convert to fraction form
    77,449.32/116,186.13 = 33,076.32/x
  3. Step 3: Cross multiply
    77,449.32x = 116,186.13 × 33,076.32
  4. Step 4: Simplify right side
    77,449.32x = 3,843,009,615.44
  5. Step 5: Solve for x
    x = 3,843,009,615.44/77,449.32
  6. Step 6: Final answer
    x = 49,619.67

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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.