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Finding the Fourth Proportional to 248,416.62, 342,821.07 and 135,245.58

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Solution

The fourth proportional to 248,416.62, 342,821.07 and 135,245.58 is: 186,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,416.62 : 342,821.07 = 135,245.58 : x
  2. Step 2: Convert to fraction form
    248,416.62/342,821.07 = 135,245.58/x
  3. Step 3: Cross multiply
    248,416.62x = 342,821.07 × 135,245.58
  4. Step 4: Simplify right side
    248,416.62x = 46,365,034,448.37
  5. Step 5: Solve for x
    x = 46,365,034,448.37/248,416.62
  6. Step 6: Final answer
    x = 186,642.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.