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Finding the Fourth Proportional to 110,012.40, 164,980.20 and 57,404.40

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Solution

The fourth proportional to 110,012.40, 164,980.20 and 57,404.40 is: 86,086.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,012.40 : 164,980.20 = 57,404.40 : x
  2. Step 2: Convert to fraction form
    110,012.40/164,980.20 = 57,404.40/x
  3. Step 3: Cross multiply
    110,012.40x = 164,980.20 × 57,404.40
  4. Step 4: Simplify right side
    110,012.40x = 9,470,589,392.88
  5. Step 5: Solve for x
    x = 9,470,589,392.88/110,012.40
  6. Step 6: Final answer
    x = 86,086.56

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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.