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Finding the Fourth Proportional to 439,362.23, 659,043.34 and 158,813.87

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Solution

The fourth proportional to 439,362.23, 659,043.34 and 158,813.87 is: 238,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,362.23 : 659,043.34 = 158,813.87 : x
  2. Step 2: Convert to fraction form
    439,362.23/659,043.34 = 158,813.87/x
  3. Step 3: Cross multiply
    439,362.23x = 659,043.34 × 158,813.87
  4. Step 4: Simplify right side
    439,362.23x = 104,665,219,630.87
  5. Step 5: Solve for x
    x = 104,665,219,630.87/439,362.23
  6. Step 6: Final answer
    x = 238,220.80

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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.