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Finding the Fourth Proportional to 89,874.82, 124,026.78 and 49,038.94

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Solution

The fourth proportional to 89,874.82, 124,026.78 and 49,038.94 is: 67,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,874.82 : 124,026.78 = 49,038.94 : x
  2. Step 2: Convert to fraction form
    89,874.82/124,026.78 = 49,038.94/x
  3. Step 3: Cross multiply
    89,874.82x = 124,026.78 × 49,038.94
  4. Step 4: Simplify right side
    89,874.82x = 6,082,141,656.75
  5. Step 5: Solve for x
    x = 6,082,141,656.75/89,874.82
  6. Step 6: Final answer
    x = 67,673.48

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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.