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Finding the Fourth Proportional to 191,147.99, 263,790.99 and 105,113.54

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Solution

The fourth proportional to 191,147.99, 263,790.99 and 105,113.54 is: 145,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,147.99 : 263,790.99 = 105,113.54 : x
  2. Step 2: Convert to fraction form
    191,147.99/263,790.99 = 105,113.54/x
  3. Step 3: Cross multiply
    191,147.99x = 263,790.99 × 105,113.54
  4. Step 4: Simplify right side
    191,147.99x = 27,728,004,779.00
  5. Step 5: Solve for x
    x = 27,728,004,779.00/191,147.99
  6. Step 6: Final answer
    x = 145,060.40

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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.