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Finding the Fourth Proportional to 84,488.89, 116,620.65 and 48,702.82

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Solution

The fourth proportional to 84,488.89, 116,620.65 and 48,702.82 is: 67,224.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,488.89 : 116,620.65 = 48,702.82 : x
  2. Step 2: Convert to fraction form
    84,488.89/116,620.65 = 48,702.82/x
  3. Step 3: Cross multiply
    84,488.89x = 116,620.65 × 48,702.82
  4. Step 4: Simplify right side
    84,488.89x = 5,679,754,525.23
  5. Step 5: Solve for x
    x = 5,679,754,525.23/84,488.89
  6. Step 6: Final answer
    x = 67,224.87

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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.