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Finding the Fourth Proportional to 84,992.33, 127,488.44 and 77,952.54

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Solution

The fourth proportional to 84,992.33, 127,488.44 and 77,952.54 is: 116,928.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,992.33 : 127,488.44 = 77,952.54 : x
  2. Step 2: Convert to fraction form
    84,992.33/127,488.44 = 77,952.54/x
  3. Step 3: Cross multiply
    84,992.33x = 127,488.44 × 77,952.54
  4. Step 4: Simplify right side
    84,992.33x = 9,938,047,328.87
  5. Step 5: Solve for x
    x = 9,938,047,328.87/84,992.33
  6. Step 6: Final answer
    x = 116,928.76

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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.