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Finding the Fourth Proportional to 188,265.56, 259,833.66 and 112,821.08

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Solution

The fourth proportional to 188,265.56, 259,833.66 and 112,821.08 is: 155,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,265.56 : 259,833.66 = 112,821.08 : x
  2. Step 2: Convert to fraction form
    188,265.56/259,833.66 = 112,821.08/x
  3. Step 3: Cross multiply
    188,265.56x = 259,833.66 × 112,821.08
  4. Step 4: Simplify right side
    188,265.56x = 29,314,714,141.55
  5. Step 5: Solve for x
    x = 29,314,714,141.55/188,265.56
  6. Step 6: Final answer
    x = 155,709.38

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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.