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Finding the Fourth Proportional to 112,107.90, 157,067.70 and 112,107.90

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Solution

The fourth proportional to 112,107.90, 157,067.70 and 112,107.90 is: 157,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,107.90 : 157,067.70 = 112,107.90 : x
  2. Step 2: Convert to fraction form
    112,107.90/157,067.70 = 112,107.90/x
  3. Step 3: Cross multiply
    112,107.90x = 157,067.70 × 112,107.90
  4. Step 4: Simplify right side
    112,107.90x = 17,608,530,004.83
  5. Step 5: Solve for x
    x = 17,608,530,004.83/112,107.90
  6. Step 6: Final answer
    x = 157,067.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.