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Finding the Fourth Proportional to 235,225.94, 324,605.48 and 138,435.49

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Solution

The fourth proportional to 235,225.94, 324,605.48 and 138,435.49 is: 191,037.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,225.94 : 324,605.48 = 138,435.49 : x
  2. Step 2: Convert to fraction form
    235,225.94/324,605.48 = 138,435.49/x
  3. Step 3: Cross multiply
    235,225.94x = 324,605.48 × 138,435.49
  4. Step 4: Simplify right side
    235,225.94x = 44,936,918,680.49
  5. Step 5: Solve for x
    x = 44,936,918,680.49/235,225.94
  6. Step 6: Final answer
    x = 191,037.26

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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.