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Finding the Fourth Proportional to 92,259.62, 138,389.56 and 25,699.94

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Solution

The fourth proportional to 92,259.62, 138,389.56 and 25,699.94 is: 38,549.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,259.62 : 138,389.56 = 25,699.94 : x
  2. Step 2: Convert to fraction form
    92,259.62/138,389.56 = 25,699.94/x
  3. Step 3: Cross multiply
    92,259.62x = 138,389.56 × 25,699.94
  4. Step 4: Simplify right side
    92,259.62x = 3,556,603,388.63
  5. Step 5: Solve for x
    x = 3,556,603,388.63/92,259.62
  6. Step 6: Final answer
    x = 38,549.95

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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.