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Finding the Fourth Proportional to 84,486.66, 116,578.54 and 48,669.66

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Solution

The fourth proportional to 84,486.66, 116,578.54 and 48,669.66 is: 67,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,486.66 : 116,578.54 = 48,669.66 : x
  2. Step 2: Convert to fraction form
    84,486.66/116,578.54 = 48,669.66/x
  3. Step 3: Cross multiply
    84,486.66x = 116,578.54 × 48,669.66
  4. Step 4: Simplify right side
    84,486.66x = 5,673,837,905.10
  5. Step 5: Solve for x
    x = 5,673,837,905.10/84,486.66
  6. Step 6: Final answer
    x = 67,156.61

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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.