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Finding the Fourth Proportional to 63,413.07, 87,310.86 and 53,833.09

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Solution

The fourth proportional to 63,413.07, 87,310.86 and 53,833.09 is: 74,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,413.07 : 87,310.86 = 53,833.09 : x
  2. Step 2: Convert to fraction form
    63,413.07/87,310.86 = 53,833.09/x
  3. Step 3: Cross multiply
    63,413.07x = 87,310.86 × 53,833.09
  4. Step 4: Simplify right side
    63,413.07x = 4,700,213,384.36
  5. Step 5: Solve for x
    x = 4,700,213,384.36/63,413.07
  6. Step 6: Final answer
    x = 74,120.58

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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.