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Finding the Fourth Proportional to 110,011.20, 164,984.40 and 43,429.20

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Solution

The fourth proportional to 110,011.20, 164,984.40 and 43,429.20 is: 65,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,011.20 : 164,984.40 = 43,429.20 : x
  2. Step 2: Convert to fraction form
    110,011.20/164,984.40 = 43,429.20/x
  3. Step 3: Cross multiply
    110,011.20x = 164,984.40 × 43,429.20
  4. Step 4: Simplify right side
    110,011.20x = 7,165,140,504.48
  5. Step 5: Solve for x
    x = 7,165,140,504.48/110,011.20
  6. Step 6: Final answer
    x = 65,131.01

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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.