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Finding the Fourth Proportional to 134,668.25, 185,839.90 and 73,415.10

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Solution

The fourth proportional to 134,668.25, 185,839.90 and 73,415.10 is: 101,311.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,668.25 : 185,839.90 = 73,415.10 : x
  2. Step 2: Convert to fraction form
    134,668.25/185,839.90 = 73,415.10/x
  3. Step 3: Cross multiply
    134,668.25x = 185,839.90 × 73,415.10
  4. Step 4: Simplify right side
    134,668.25x = 13,643,454,842.49
  5. Step 5: Solve for x
    x = 13,643,454,842.49/134,668.25
  6. Step 6: Final answer
    x = 101,311.59

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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.