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Finding the Fourth Proportional to 92,399.64, 138,599.91 and 25,840.01

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Solution

The fourth proportional to 92,399.64, 138,599.91 and 25,840.01 is: 38,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,399.64 : 138,599.91 = 25,840.01 : x
  2. Step 2: Convert to fraction form
    92,399.64/138,599.91 = 25,840.01/x
  3. Step 3: Cross multiply
    92,399.64x = 138,599.91 × 25,840.01
  4. Step 4: Simplify right side
    92,399.64x = 3,581,423,406.90
  5. Step 5: Solve for x
    x = 3,581,423,406.90/92,399.64
  6. Step 6: Final answer
    x = 38,760.15

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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.