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Finding the Fourth Proportional to 188,406.04, 259,884.90 and 111,873.16

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Solution

The fourth proportional to 188,406.04, 259,884.90 and 111,873.16 is: 154,316.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,406.04 : 259,884.90 = 111,873.16 : x
  2. Step 2: Convert to fraction form
    188,406.04/259,884.90 = 111,873.16/x
  3. Step 3: Cross multiply
    188,406.04x = 259,884.90 × 111,873.16
  4. Step 4: Simplify right side
    188,406.04x = 29,074,144,999.28
  5. Step 5: Solve for x
    x = 29,074,144,999.28/188,406.04
  6. Step 6: Final answer
    x = 154,316.42

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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.