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Finding the Fourth Proportional to 188,040.99, 259,458.42 and 111,526.51

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Solution

The fourth proportional to 188,040.99, 259,458.42 and 111,526.51 is: 153,883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,040.99 : 259,458.42 = 111,526.51 : x
  2. Step 2: Convert to fraction form
    188,040.99/259,458.42 = 111,526.51/x
  3. Step 3: Cross multiply
    188,040.99x = 259,458.42 × 111,526.51
  4. Step 4: Simplify right side
    188,040.99x = 28,936,492,072.71
  5. Step 5: Solve for x
    x = 28,936,492,072.71/188,040.99
  6. Step 6: Final answer
    x = 153,883.96

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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.