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Finding the Fourth Proportional to 189,874.80, 262,032.36 and 104,994.84

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Solution

The fourth proportional to 189,874.80, 262,032.36 and 104,994.84 is: 144,895.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,874.80 : 262,032.36 = 104,994.84 : x
  2. Step 2: Convert to fraction form
    189,874.80/262,032.36 = 104,994.84/x
  3. Step 3: Cross multiply
    189,874.80x = 262,032.36 × 104,994.84
  4. Step 4: Simplify right side
    189,874.80x = 27,512,045,713.02
  5. Step 5: Solve for x
    x = 27,512,045,713.02/189,874.80
  6. Step 6: Final answer
    x = 144,895.72

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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.