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Finding the Fourth Proportional to 117,108.64, 175,661.60 and 46,986.72

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Solution

The fourth proportional to 117,108.64, 175,661.60 and 46,986.72 is: 70,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,108.64 : 175,661.60 = 46,986.72 : x
  2. Step 2: Convert to fraction form
    117,108.64/175,661.60 = 46,986.72/x
  3. Step 3: Cross multiply
    117,108.64x = 175,661.60 × 46,986.72
  4. Step 4: Simplify right side
    117,108.64x = 8,253,762,413.95
  5. Step 5: Solve for x
    x = 8,253,762,413.95/117,108.64
  6. Step 6: Final answer
    x = 70,479.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.