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Finding the Fourth Proportional to 111,890.70, 168,448.55 and 102,092.94

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Solution

The fourth proportional to 111,890.70, 168,448.55 and 102,092.94 is: 153,698.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,890.70 : 168,448.55 = 102,092.94 : x
  2. Step 2: Convert to fraction form
    111,890.70/168,448.55 = 102,092.94/x
  3. Step 3: Cross multiply
    111,890.70x = 168,448.55 × 102,092.94
  4. Step 4: Simplify right side
    111,890.70x = 17,197,407,197.77
  5. Step 5: Solve for x
    x = 17,197,407,197.77/111,890.70
  6. Step 6: Final answer
    x = 153,698.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.