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Finding the Fourth Proportional to 173,488, 239,413.60 and 94,000

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Solution

The fourth proportional to 173,488, 239,413.60 and 94,000 is: 129,720.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,488 : 239,413.60 = 94,000 : x
  2. Step 2: Convert to fraction form
    173,488/239,413.60 = 94,000/x
  3. Step 3: Cross multiply
    173,488x = 239,413.60 × 94,000
  4. Step 4: Simplify right side
    173,488x = 22,504,878,400
  5. Step 5: Solve for x
    x = 22,504,878,400/173,488
  6. Step 6: Final answer
    x = 129,720.09

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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.