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Finding the Fourth Proportional to 495,542.67, 743,313.59 and 140,559.76

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Solution

The fourth proportional to 495,542.67, 743,313.59 and 140,559.76 is: 210,839.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,542.67 : 743,313.59 = 140,559.76 : x
  2. Step 2: Convert to fraction form
    495,542.67/743,313.59 = 140,559.76/x
  3. Step 3: Cross multiply
    495,542.67x = 743,313.59 × 140,559.76
  4. Step 4: Simplify right side
    495,542.67x = 104,479,980,568.58
  5. Step 5: Solve for x
    x = 104,479,980,568.58/495,542.67
  6. Step 6: Final answer
    x = 210,839.53

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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.