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Finding the Fourth Proportional to 136,507.88, 204,756.06 and 43,080.68

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Solution

The fourth proportional to 136,507.88, 204,756.06 and 43,080.68 is: 64,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,507.88 : 204,756.06 = 43,080.68 : x
  2. Step 2: Convert to fraction form
    136,507.88/204,756.06 = 43,080.68/x
  3. Step 3: Cross multiply
    136,507.88x = 204,756.06 × 43,080.68
  4. Step 4: Simplify right side
    136,507.88x = 8,821,030,298.92
  5. Step 5: Solve for x
    x = 8,821,030,298.92/136,507.88
  6. Step 6: Final answer
    x = 64,619.20

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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.