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Finding the Fourth Proportional to 281,260.94, 388,141.11 and 152,199.41

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Solution

The fourth proportional to 281,260.94, 388,141.11 and 152,199.41 is: 210,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,260.94 : 388,141.11 = 152,199.41 : x
  2. Step 2: Convert to fraction form
    281,260.94/388,141.11 = 152,199.41/x
  3. Step 3: Cross multiply
    281,260.94x = 388,141.11 × 152,199.41
  4. Step 4: Simplify right side
    281,260.94x = 59,074,845,998.04
  5. Step 5: Solve for x
    x = 59,074,845,998.04/281,260.94
  6. Step 6: Final answer
    x = 210,035.73

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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.