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Finding the Fourth Proportional to 262,648.45, 362,440.02 and 155,228.50

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Solution

The fourth proportional to 262,648.45, 362,440.02 and 155,228.50 is: 214,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,648.45 : 362,440.02 = 155,228.50 : x
  2. Step 2: Convert to fraction form
    262,648.45/362,440.02 = 155,228.50/x
  3. Step 3: Cross multiply
    262,648.45x = 362,440.02 × 155,228.50
  4. Step 4: Simplify right side
    262,648.45x = 56,261,020,644.57
  5. Step 5: Solve for x
    x = 56,261,020,644.57/262,648.45
  6. Step 6: Final answer
    x = 214,206.56

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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.