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Finding the Fourth Proportional to 144,002.93, 198,735.21 and 79,484.81

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Solution

The fourth proportional to 144,002.93, 198,735.21 and 79,484.81 is: 109,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,002.93 : 198,735.21 = 79,484.81 : x
  2. Step 2: Convert to fraction form
    144,002.93/198,735.21 = 79,484.81/x
  3. Step 3: Cross multiply
    144,002.93x = 198,735.21 × 79,484.81
  4. Step 4: Simplify right side
    144,002.93x = 15,796,429,413.48
  5. Step 5: Solve for x
    x = 15,796,429,413.48/144,002.93
  6. Step 6: Final answer
    x = 109,695.20

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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.