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Finding the Fourth Proportional to 106,959.83, 160,427.39 and 28,080.23

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Solution

The fourth proportional to 106,959.83, 160,427.39 and 28,080.23 is: 42,117.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,959.83 : 160,427.39 = 28,080.23 : x
  2. Step 2: Convert to fraction form
    106,959.83/160,427.39 = 28,080.23/x
  3. Step 3: Cross multiply
    106,959.83x = 160,427.39 × 28,080.23
  4. Step 4: Simplify right side
    106,959.83x = 4,504,837,066.96
  5. Step 5: Solve for x
    x = 4,504,837,066.96/106,959.83
  6. Step 6: Final answer
    x = 42,117.09

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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.