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Finding the Fourth Proportional to 188,810.45, 260,562.52 and 103,927.51

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Solution

The fourth proportional to 188,810.45, 260,562.52 and 103,927.51 is: 143,422.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,810.45 : 260,562.52 = 103,927.51 : x
  2. Step 2: Convert to fraction form
    188,810.45/260,562.52 = 103,927.51/x
  3. Step 3: Cross multiply
    188,810.45x = 260,562.52 × 103,927.51
  4. Step 4: Simplify right side
    188,810.45x = 27,079,613,902.93
  5. Step 5: Solve for x
    x = 27,079,613,902.93/188,810.45
  6. Step 6: Final answer
    x = 143,422.22

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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.