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Finding the Fourth Proportional to 321,050.48, 481,132.86 and 242,077.92

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Solution

The fourth proportional to 321,050.48, 481,132.86 and 242,077.92 is: 362,782.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,050.48 : 481,132.86 = 242,077.92 : x
  2. Step 2: Convert to fraction form
    321,050.48/481,132.86 = 242,077.92/x
  3. Step 3: Cross multiply
    321,050.48x = 481,132.86 × 242,077.92
  4. Step 4: Simplify right side
    321,050.48x = 116,471,641,992.45
  5. Step 5: Solve for x
    x = 116,471,641,992.45/321,050.48
  6. Step 6: Final answer
    x = 362,782.96

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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.