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Finding the Fourth Proportional to 245,633.70, 368,540.64 and 103,514.74

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Solution

The fourth proportional to 245,633.70, 368,540.64 and 103,514.74 is: 155,310.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,633.70 : 368,540.64 = 103,514.74 : x
  2. Step 2: Convert to fraction form
    245,633.70/368,540.64 = 103,514.74/x
  3. Step 3: Cross multiply
    245,633.70x = 368,540.64 × 103,514.74
  4. Step 4: Simplify right side
    245,633.70x = 38,149,388,529.03
  5. Step 5: Solve for x
    x = 38,149,388,529.03/245,633.70
  6. Step 6: Final answer
    x = 155,310.08

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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.