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Finding the Fourth Proportional to 86,468.76, 119,325.42 and 48,742.92

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Solution

The fourth proportional to 86,468.76, 119,325.42 and 48,742.92 is: 67,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,468.76 : 119,325.42 = 48,742.92 : x
  2. Step 2: Convert to fraction form
    86,468.76/119,325.42 = 48,742.92/x
  3. Step 3: Cross multiply
    86,468.76x = 119,325.42 × 48,742.92
  4. Step 4: Simplify right side
    86,468.76x = 5,816,269,401.03
  5. Step 5: Solve for x
    x = 5,816,269,401.03/86,468.76
  6. Step 6: Final answer
    x = 67,264.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.