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Finding the Fourth Proportional to 117,693.51, 162,413.62 and 66,710.93

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Solution

The fourth proportional to 117,693.51, 162,413.62 and 66,710.93 is: 92,059.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,693.51 : 162,413.62 = 66,710.93 : x
  2. Step 2: Convert to fraction form
    117,693.51/162,413.62 = 66,710.93/x
  3. Step 3: Cross multiply
    117,693.51x = 162,413.62 × 66,710.93
  4. Step 4: Simplify right side
    117,693.51x = 10,834,763,634.87
  5. Step 5: Solve for x
    x = 10,834,763,634.87/117,693.51
  6. Step 6: Final answer
    x = 92,059.14

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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.