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Finding the Fourth Proportional to 248,913, 373,406.94 and 80,376.84

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Solution

The fourth proportional to 248,913, 373,406.94 and 80,376.84 is: 120,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,913 : 373,406.94 = 80,376.84 : x
  2. Step 2: Convert to fraction form
    248,913/373,406.94 = 80,376.84/x
  3. Step 3: Cross multiply
    248,913x = 373,406.94 × 80,376.84
  4. Step 4: Simplify right side
    248,913x = 30,013,269,871.27
  5. Step 5: Solve for x
    x = 30,013,269,871.27/248,913
  6. Step 6: Final answer
    x = 120,577.35

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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.