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Finding the Fourth Proportional to 223,390.80, 335,145.60 and 96,976.80

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Solution

The fourth proportional to 223,390.80, 335,145.60 and 96,976.80 is: 145,490.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,390.80 : 335,145.60 = 96,976.80 : x
  2. Step 2: Convert to fraction form
    223,390.80/335,145.60 = 96,976.80/x
  3. Step 3: Cross multiply
    223,390.80x = 335,145.60 × 96,976.80
  4. Step 4: Simplify right side
    223,390.80x = 32,501,347,822.08
  5. Step 5: Solve for x
    x = 32,501,347,822.08/223,390.80
  6. Step 6: Final answer
    x = 145,490.99

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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.