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Finding the Fourth Proportional to 183,860.91, 253,734.66 and 103,286.70

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Solution

The fourth proportional to 183,860.91, 253,734.66 and 103,286.70 is: 142,539.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,860.91 : 253,734.66 = 103,286.70 : x
  2. Step 2: Convert to fraction form
    183,860.91/253,734.66 = 103,286.70/x
  3. Step 3: Cross multiply
    183,860.91x = 253,734.66 × 103,286.70
  4. Step 4: Simplify right side
    183,860.91x = 26,207,415,707.02
  5. Step 5: Solve for x
    x = 26,207,415,707.02/183,860.91
  6. Step 6: Final answer
    x = 142,539.36

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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.