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Finding the Fourth Proportional to 245,146.30, 367,387.30 and 126,900.68

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Solution

The fourth proportional to 245,146.30, 367,387.30 and 126,900.68 is: 190,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,146.30 : 367,387.30 = 126,900.68 : x
  2. Step 2: Convert to fraction form
    245,146.30/367,387.30 = 126,900.68/x
  3. Step 3: Cross multiply
    245,146.30x = 367,387.30 × 126,900.68
  4. Step 4: Simplify right side
    245,146.30x = 46,621,695,801.24
  5. Step 5: Solve for x
    x = 46,621,695,801.24/245,146.30
  6. Step 6: Final answer
    x = 190,179.07

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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.