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Finding the Fourth Proportional to 245,626.70, 368,440.02 and 68,133.72

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Solution

The fourth proportional to 245,626.70, 368,440.02 and 68,133.72 is: 102,200.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,626.70 : 368,440.02 = 68,133.72 : x
  2. Step 2: Convert to fraction form
    245,626.70/368,440.02 = 68,133.72/x
  3. Step 3: Cross multiply
    245,626.70x = 368,440.02 × 68,133.72
  4. Step 4: Simplify right side
    245,626.70x = 25,103,189,159.47
  5. Step 5: Solve for x
    x = 25,103,189,159.47/245,626.70
  6. Step 6: Final answer
    x = 102,200.57

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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.