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Finding the Fourth Proportional to 191,606.81, 264,404.63 and 111,019.97

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Solution

The fourth proportional to 191,606.81, 264,404.63 and 111,019.97 is: 153,200.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,606.81 : 264,404.63 = 111,019.97 : x
  2. Step 2: Convert to fraction form
    191,606.81/264,404.63 = 111,019.97/x
  3. Step 3: Cross multiply
    191,606.81x = 264,404.63 × 111,019.97
  4. Step 4: Simplify right side
    191,606.81x = 29,354,195,029.02
  5. Step 5: Solve for x
    x = 29,354,195,029.02/191,606.81
  6. Step 6: Final answer
    x = 153,200.17

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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.