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Finding the Fourth Proportional to 60,901.86, 84,413.07 and 57,397.87

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Solution

The fourth proportional to 60,901.86, 84,413.07 and 57,397.87 is: 79,556.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,901.86 : 84,413.07 = 57,397.87 : x
  2. Step 2: Convert to fraction form
    60,901.86/84,413.07 = 57,397.87/x
  3. Step 3: Cross multiply
    60,901.86x = 84,413.07 × 57,397.87
  4. Step 4: Simplify right side
    60,901.86x = 4,845,130,418.16
  5. Step 5: Solve for x
    x = 4,845,130,418.16/60,901.86
  6. Step 6: Final answer
    x = 79,556.36

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.