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Finding the Fourth Proportional to 125,371.64, 173,015.91 and 68,783.02

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Solution

The fourth proportional to 125,371.64, 173,015.91 and 68,783.02 is: 94,922.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,371.64 : 173,015.91 = 68,783.02 : x
  2. Step 2: Convert to fraction form
    125,371.64/173,015.91 = 68,783.02/x
  3. Step 3: Cross multiply
    125,371.64x = 173,015.91 × 68,783.02
  4. Step 4: Simplify right side
    125,371.64x = 11,900,556,107.37
  5. Step 5: Solve for x
    x = 11,900,556,107.37/125,371.64
  6. Step 6: Final answer
    x = 94,922.23

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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.