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Finding the Fourth Proportional to 117,605.17, 162,309.04 and 69,858.70

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Solution

The fourth proportional to 117,605.17, 162,309.04 and 69,858.70 is: 96,413.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,605.17 : 162,309.04 = 69,858.70 : x
  2. Step 2: Convert to fraction form
    117,605.17/162,309.04 = 69,858.70/x
  3. Step 3: Cross multiply
    117,605.17x = 162,309.04 × 69,858.70
  4. Step 4: Simplify right side
    117,605.17x = 11,338,699,061.69
  5. Step 5: Solve for x
    x = 11,338,699,061.69/117,605.17
  6. Step 6: Final answer
    x = 96,413.27

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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.