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Finding the Fourth Proportional to 275,764.80, 413,352.90 and 157,180.80

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Solution

The fourth proportional to 275,764.80, 413,352.90 and 157,180.80 is: 235,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,764.80 : 413,352.90 = 157,180.80 : x
  2. Step 2: Convert to fraction form
    275,764.80/413,352.90 = 157,180.80/x
  3. Step 3: Cross multiply
    275,764.80x = 413,352.90 × 157,180.80
  4. Step 4: Simplify right side
    275,764.80x = 64,971,139,504.32
  5. Step 5: Solve for x
    x = 64,971,139,504.32/275,764.80
  6. Step 6: Final answer
    x = 235,603.45

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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.