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Finding the Fourth Proportional to 136,783.62, 204,797.57 and 70,080.12

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Solution

The fourth proportional to 136,783.62, 204,797.57 and 70,080.12 is: 104,926.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,783.62 : 204,797.57 = 70,080.12 : x
  2. Step 2: Convert to fraction form
    136,783.62/204,797.57 = 70,080.12/x
  3. Step 3: Cross multiply
    136,783.62x = 204,797.57 × 70,080.12
  4. Step 4: Simplify right side
    136,783.62x = 14,352,237,930.91
  5. Step 5: Solve for x
    x = 14,352,237,930.91/136,783.62
  6. Step 6: Final answer
    x = 104,926.58

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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.