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Finding the Fourth Proportional to 235,661.55, 353,413.05 and 75,698.25

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Solution

The fourth proportional to 235,661.55, 353,413.05 and 75,698.25 is: 113,521.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,661.55 : 353,413.05 = 75,698.25 : x
  2. Step 2: Convert to fraction form
    235,661.55/353,413.05 = 75,698.25/x
  3. Step 3: Cross multiply
    235,661.55x = 353,413.05 × 75,698.25
  4. Step 4: Simplify right side
    235,661.55x = 26,752,749,412.16
  5. Step 5: Solve for x
    x = 26,752,749,412.16/235,661.55
  6. Step 6: Final answer
    x = 113,521.91

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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.