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Finding the Fourth Proportional to 89,893.97, 124,051.39 and 49,607.20

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Solution

The fourth proportional to 89,893.97, 124,051.39 and 49,607.20 is: 68,456.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,893.97 : 124,051.39 = 49,607.20 : x
  2. Step 2: Convert to fraction form
    89,893.97/124,051.39 = 49,607.20/x
  3. Step 3: Cross multiply
    89,893.97x = 124,051.39 × 49,607.20
  4. Step 4: Simplify right side
    89,893.97x = 6,153,841,679.86
  5. Step 5: Solve for x
    x = 6,153,841,679.86/89,893.97
  6. Step 6: Final answer
    x = 68,456.67

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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.