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Finding the Fourth Proportional to 268,053.80, 401,619.90 and 174,511.40

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Solution

The fourth proportional to 268,053.80, 401,619.90 and 174,511.40 is: 261,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,053.80 : 401,619.90 = 174,511.40 : x
  2. Step 2: Convert to fraction form
    268,053.80/401,619.90 = 174,511.40/x
  3. Step 3: Cross multiply
    268,053.80x = 401,619.90 × 174,511.40
  4. Step 4: Simplify right side
    268,053.80x = 70,087,251,016.86
  5. Step 5: Solve for x
    x = 70,087,251,016.86/268,053.80
  6. Step 6: Final answer
    x = 261,467.10

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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.