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Finding the Fourth Proportional to 248,583.94, 343,045.83 and 135,406.69

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Solution

The fourth proportional to 248,583.94, 343,045.83 and 135,406.69 is: 186,861.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,583.94 : 343,045.83 = 135,406.69 : x
  2. Step 2: Convert to fraction form
    248,583.94/343,045.83 = 135,406.69/x
  3. Step 3: Cross multiply
    248,583.94x = 343,045.83 × 135,406.69
  4. Step 4: Simplify right side
    248,583.94x = 46,450,700,008.76
  5. Step 5: Solve for x
    x = 46,450,700,008.76/248,583.94
  6. Step 6: Final answer
    x = 186,861.23

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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.