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Finding the Fourth Proportional to 307,067.06, 423,746.16 and 171,100.46

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Solution

The fourth proportional to 307,067.06, 423,746.16 and 171,100.46 is: 236,115.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,067.06 : 423,746.16 = 171,100.46 : x
  2. Step 2: Convert to fraction form
    307,067.06/423,746.16 = 171,100.46/x
  3. Step 3: Cross multiply
    307,067.06x = 423,746.16 × 171,100.46
  4. Step 4: Simplify right side
    307,067.06x = 72,503,162,899.23
  5. Step 5: Solve for x
    x = 72,503,162,899.23/307,067.06
  6. Step 6: Final answer
    x = 236,115.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.