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Finding the Fourth Proportional to 170,406.48, 235,147.11 and 98,791.11

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Solution

The fourth proportional to 170,406.48, 235,147.11 and 98,791.11 is: 136,323.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,406.48 : 235,147.11 = 98,791.11 : x
  2. Step 2: Convert to fraction form
    170,406.48/235,147.11 = 98,791.11/x
  3. Step 3: Cross multiply
    170,406.48x = 235,147.11 × 98,791.11
  4. Step 4: Simplify right side
    170,406.48x = 23,230,444,205.20
  5. Step 5: Solve for x
    x = 23,230,444,205.20/170,406.48
  6. Step 6: Final answer
    x = 136,323.72

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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.