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Finding the Fourth Proportional to 73,413.33, 101,307.66 and 39,878.61

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Solution

The fourth proportional to 73,413.33, 101,307.66 and 39,878.61 is: 55,031.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,413.33 : 101,307.66 = 39,878.61 : x
  2. Step 2: Convert to fraction form
    73,413.33/101,307.66 = 39,878.61/x
  3. Step 3: Cross multiply
    73,413.33x = 101,307.66 × 39,878.61
  4. Step 4: Simplify right side
    73,413.33x = 4,040,008,663.15
  5. Step 5: Solve for x
    x = 4,040,008,663.15/73,413.33
  6. Step 6: Final answer
    x = 55,031.00

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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.