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Finding the Fourth Proportional to 197,838.76, 296,771.84 and 79,510.20

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Solution

The fourth proportional to 197,838.76, 296,771.84 and 79,510.20 is: 119,270.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,838.76 : 296,771.84 = 79,510.20 : x
  2. Step 2: Convert to fraction form
    197,838.76/296,771.84 = 79,510.20/x
  3. Step 3: Cross multiply
    197,838.76x = 296,771.84 × 79,510.20
  4. Step 4: Simplify right side
    197,838.76x = 23,596,388,352.77
  5. Step 5: Solve for x
    x = 23,596,388,352.77/197,838.76
  6. Step 6: Final answer
    x = 119,270.81

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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.