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Finding the Fourth Proportional to 92,445.42, 138,668.14 and 25,895.44

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Solution

The fourth proportional to 92,445.42, 138,668.14 and 25,895.44 is: 38,843.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,445.42 : 138,668.14 = 25,895.44 : x
  2. Step 2: Convert to fraction form
    92,445.42/138,668.14 = 25,895.44/x
  3. Step 3: Cross multiply
    92,445.42x = 138,668.14 × 25,895.44
  4. Step 4: Simplify right side
    92,445.42x = 3,590,872,499.28
  5. Step 5: Solve for x
    x = 3,590,872,499.28/92,445.42
  6. Step 6: Final answer
    x = 38,843.16

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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.