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Finding the Fourth Proportional to 191,768.72, 264,641.99 and 111,244.19

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Solution

The fourth proportional to 191,768.72, 264,641.99 and 111,244.19 is: 153,517.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,768.72 : 264,641.99 = 111,244.19 : x
  2. Step 2: Convert to fraction form
    191,768.72/264,641.99 = 111,244.19/x
  3. Step 3: Cross multiply
    191,768.72x = 264,641.99 × 111,244.19
  4. Step 4: Simplify right side
    191,768.72x = 29,439,881,938.11
  5. Step 5: Solve for x
    x = 29,439,881,938.11/191,768.72
  6. Step 6: Final answer
    x = 153,517.65

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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.