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Finding the Fourth Proportional to 228,539.04, 315,339.12 and 126,559.56

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Solution

The fourth proportional to 228,539.04, 315,339.12 and 126,559.56 is: 174,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,539.04 : 315,339.12 = 126,559.56 : x
  2. Step 2: Convert to fraction form
    228,539.04/315,339.12 = 126,559.56/x
  3. Step 3: Cross multiply
    228,539.04x = 315,339.12 × 126,559.56
  4. Step 4: Simplify right side
    228,539.04x = 39,909,180,277.99
  5. Step 5: Solve for x
    x = 39,909,180,277.99/228,539.04
  6. Step 6: Final answer
    x = 174,627.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.