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Finding the Fourth Proportional to 134,791.25, 186,011.93 and 75,175.25

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Solution

The fourth proportional to 134,791.25, 186,011.93 and 75,175.25 is: 103,741.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,791.25 : 186,011.93 = 75,175.25 : x
  2. Step 2: Convert to fraction form
    134,791.25/186,011.93 = 75,175.25/x
  3. Step 3: Cross multiply
    134,791.25x = 186,011.93 × 75,175.25
  4. Step 4: Simplify right side
    134,791.25x = 13,983,492,964.86
  5. Step 5: Solve for x
    x = 13,983,492,964.86/134,791.25
  6. Step 6: Final answer
    x = 103,741.85

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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.