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Finding the Fourth Proportional to 60,751.77, 91,127.12 and 19,198.77

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Solution

The fourth proportional to 60,751.77, 91,127.12 and 19,198.77 is: 28,797.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,751.77 : 91,127.12 = 19,198.77 : x
  2. Step 2: Convert to fraction form
    60,751.77/91,127.12 = 19,198.77/x
  3. Step 3: Cross multiply
    60,751.77x = 91,127.12 × 19,198.77
  4. Step 4: Simplify right side
    60,751.77x = 1,749,528,521.65
  5. Step 5: Solve for x
    x = 1,749,528,521.65/60,751.77
  6. Step 6: Final answer
    x = 28,797.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.