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Finding the Fourth Proportional to 188,742.44, 260,464.47 and 103,859.50

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Solution

The fourth proportional to 188,742.44, 260,464.47 and 103,859.50 is: 143,326.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,742.44 : 260,464.47 = 103,859.50 : x
  2. Step 2: Convert to fraction form
    188,742.44/260,464.47 = 103,859.50/x
  3. Step 3: Cross multiply
    188,742.44x = 260,464.47 × 103,859.50
  4. Step 4: Simplify right side
    188,742.44x = 27,051,709,621.97
  5. Step 5: Solve for x
    x = 27,051,709,621.97/188,742.44
  6. Step 6: Final answer
    x = 143,326.06

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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.