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Finding the Fourth Proportional to 86,468.43, 119,308.28 and 52,494.80

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Solution

The fourth proportional to 86,468.43, 119,308.28 and 52,494.80 is: 72,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,468.43 : 119,308.28 = 52,494.80 : x
  2. Step 2: Convert to fraction form
    86,468.43/119,308.28 = 52,494.80/x
  3. Step 3: Cross multiply
    86,468.43x = 119,308.28 × 52,494.80
  4. Step 4: Simplify right side
    86,468.43x = 6,263,064,129.91
  5. Step 5: Solve for x
    x = 6,263,064,129.91/86,468.43
  6. Step 6: Final answer
    x = 72,431.81

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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.