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Finding the Fourth Proportional to 362,426.84, 543,424.92 and 137,803.70

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Solution

The fourth proportional to 362,426.84, 543,424.92 and 137,803.70 is: 206,623.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,426.84 : 543,424.92 = 137,803.70 : x
  2. Step 2: Convert to fraction form
    362,426.84/543,424.92 = 137,803.70/x
  3. Step 3: Cross multiply
    362,426.84x = 543,424.92 × 137,803.70
  4. Step 4: Simplify right side
    362,426.84x = 74,885,964,648.20
  5. Step 5: Solve for x
    x = 74,885,964,648.20/362,426.84
  6. Step 6: Final answer
    x = 206,623.67

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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.