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Finding the Fourth Proportional to 92,668.08, 138,949.45 and 36,477.75

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Solution

The fourth proportional to 92,668.08, 138,949.45 and 36,477.75 is: 54,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,668.08 : 138,949.45 = 36,477.75 : x
  2. Step 2: Convert to fraction form
    92,668.08/138,949.45 = 36,477.75/x
  3. Step 3: Cross multiply
    92,668.08x = 138,949.45 × 36,477.75
  4. Step 4: Simplify right side
    92,668.08x = 5,068,563,299.74
  5. Step 5: Solve for x
    x = 5,068,563,299.74/92,668.08
  6. Step 6: Final answer
    x = 54,695.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.