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Finding the Fourth Proportional to 191,817.86, 264,709.78 and 111,293.34

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Solution

The fourth proportional to 191,817.86, 264,709.78 and 111,293.34 is: 153,585.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,817.86 : 264,709.78 = 111,293.34 : x
  2. Step 2: Convert to fraction form
    191,817.86/264,709.78 = 111,293.34/x
  3. Step 3: Cross multiply
    191,817.86x = 264,709.78 × 111,293.34
  4. Step 4: Simplify right side
    191,817.86x = 29,460,435,546.87
  5. Step 5: Solve for x
    x = 29,460,435,546.87/191,817.86
  6. Step 6: Final answer
    x = 153,585.47

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1.5x scale

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.