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Finding the Fourth Proportional to 102,735.98, 141,775.24 and 57,413.96

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Solution

The fourth proportional to 102,735.98, 141,775.24 and 57,413.96 is: 79,231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,735.98 : 141,775.24 = 57,413.96 : x
  2. Step 2: Convert to fraction form
    102,735.98/141,775.24 = 57,413.96/x
  3. Step 3: Cross multiply
    102,735.98x = 141,775.24 × 57,413.96
  4. Step 4: Simplify right side
    102,735.98x = 8,139,877,958.35
  5. Step 5: Solve for x
    x = 8,139,877,958.35/102,735.98
  6. Step 6: Final answer
    x = 79,231.03

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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.