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Finding the Fourth Proportional to 105,394.69, 158,080.39 and 26,508.95

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Solution

The fourth proportional to 105,394.69, 158,080.39 and 26,508.95 is: 39,760.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,394.69 : 158,080.39 = 26,508.95 : x
  2. Step 2: Convert to fraction form
    105,394.69/158,080.39 = 26,508.95/x
  3. Step 3: Cross multiply
    105,394.69x = 158,080.39 × 26,508.95
  4. Step 4: Simplify right side
    105,394.69x = 4,190,544,297.82
  5. Step 5: Solve for x
    x = 4,190,544,297.82/105,394.69
  6. Step 6: Final answer
    x = 39,760.49

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1.5x scale

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.