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Finding the Fourth Proportional to 160,668.08, 221,713.41 and 92,681

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Solution

The fourth proportional to 160,668.08, 221,713.41 and 92,681 is: 127,894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,668.08 : 221,713.41 = 92,681 : x
  2. Step 2: Convert to fraction form
    160,668.08/221,713.41 = 92,681/x
  3. Step 3: Cross multiply
    160,668.08x = 221,713.41 × 92,681
  4. Step 4: Simplify right side
    160,668.08x = 20,548,620,552.21
  5. Step 5: Solve for x
    x = 20,548,620,552.21/160,668.08
  6. Step 6: Final answer
    x = 127,894.85

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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.