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Finding the Fourth Proportional to 158,857.44, 238,340.83 and 99,623.76

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Solution

The fourth proportional to 158,857.44, 238,340.83 and 99,623.76 is: 149,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,857.44 : 238,340.83 = 99,623.76 : x
  2. Step 2: Convert to fraction form
    158,857.44/238,340.83 = 99,623.76/x
  3. Step 3: Cross multiply
    158,857.44x = 238,340.83 × 99,623.76
  4. Step 4: Simplify right side
    158,857.44x = 23,744,409,646.12
  5. Step 5: Solve for x
    x = 23,744,409,646.12/158,857.44
  6. Step 6: Final answer
    x = 149,469.93

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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.