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Finding the Fourth Proportional to 89,468.89, 134,092.54 and 45,071.43

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Solution

The fourth proportional to 89,468.89, 134,092.54 and 45,071.43 is: 67,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,468.89 : 134,092.54 = 45,071.43 : x
  2. Step 2: Convert to fraction form
    89,468.89/134,092.54 = 45,071.43/x
  3. Step 3: Cross multiply
    89,468.89x = 134,092.54 × 45,071.43
  4. Step 4: Simplify right side
    89,468.89x = 6,043,742,530.13
  5. Step 5: Solve for x
    x = 6,043,742,530.13/89,468.89
  6. Step 6: Final answer
    x = 67,551.33

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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.