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Finding the Fourth Proportional to 191,896.40, 264,811.20 and 107,027.84

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Solution

The fourth proportional to 191,896.40, 264,811.20 and 107,027.84 is: 147,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,896.40 : 264,811.20 = 107,027.84 : x
  2. Step 2: Convert to fraction form
    191,896.40/264,811.20 = 107,027.84/x
  3. Step 3: Cross multiply
    191,896.40x = 264,811.20 × 107,027.84
  4. Step 4: Simplify right side
    191,896.40x = 28,342,170,743.81
  5. Step 5: Solve for x
    x = 28,342,170,743.81/191,896.40
  6. Step 6: Final answer
    x = 147,695.17

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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.