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Finding the Fourth Proportional to 188,801.84, 260,544.48 and 103,917.08

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Solution

The fourth proportional to 188,801.84, 260,544.48 and 103,917.08 is: 143,404.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,801.84 : 260,544.48 = 103,917.08 : x
  2. Step 2: Convert to fraction form
    188,801.84/260,544.48 = 103,917.08/x
  3. Step 3: Cross multiply
    188,801.84x = 260,544.48 × 103,917.08
  4. Step 4: Simplify right side
    188,801.84x = 27,075,021,571.72
  5. Step 5: Solve for x
    x = 27,075,021,571.72/188,801.84
  6. Step 6: Final answer
    x = 143,404.44

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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.