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Finding the Fourth Proportional to 237,674.54, 356,271.78 and 148,990.21

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Solution

The fourth proportional to 237,674.54, 356,271.78 and 148,990.21 is: 223,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,674.54 : 356,271.78 = 148,990.21 : x
  2. Step 2: Convert to fraction form
    237,674.54/356,271.78 = 148,990.21/x
  3. Step 3: Cross multiply
    237,674.54x = 356,271.78 × 148,990.21
  4. Step 4: Simplify right side
    237,674.54x = 53,081,006,987.31
  5. Step 5: Solve for x
    x = 53,081,006,987.31/237,674.54
  6. Step 6: Final answer
    x = 223,334.84

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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.