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Finding the Fourth Proportional to 191,795.91, 264,791.78 and 170,516.30

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Solution

The fourth proportional to 191,795.91, 264,791.78 and 170,516.30 is: 235,413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,795.91 : 264,791.78 = 170,516.30 : x
  2. Step 2: Convert to fraction form
    191,795.91/264,791.78 = 170,516.30/x
  3. Step 3: Cross multiply
    191,795.91x = 264,791.78 × 170,516.30
  4. Step 4: Simplify right side
    191,795.91x = 45,151,312,419.47
  5. Step 5: Solve for x
    x = 45,151,312,419.47/191,795.91
  6. Step 6: Final answer
    x = 235,413.32

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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.