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Finding the Fourth Proportional to 92,412.72, 138,594.48 and 25,848.72

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Solution

The fourth proportional to 92,412.72, 138,594.48 and 25,848.72 is: 38,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,412.72 : 138,594.48 = 25,848.72 : x
  2. Step 2: Convert to fraction form
    92,412.72/138,594.48 = 25,848.72/x
  3. Step 3: Cross multiply
    92,412.72x = 138,594.48 × 25,848.72
  4. Step 4: Simplify right side
    92,412.72x = 3,582,489,907.07
  5. Step 5: Solve for x
    x = 3,582,489,907.07/92,412.72
  6. Step 6: Final answer
    x = 38,766.20

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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.