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Finding the Fourth Proportional to 103,676.94, 155,473.56 and 40,488.03

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Solution

The fourth proportional to 103,676.94, 155,473.56 and 40,488.03 is: 60,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,676.94 : 155,473.56 = 40,488.03 : x
  2. Step 2: Convert to fraction form
    103,676.94/155,473.56 = 40,488.03/x
  3. Step 3: Cross multiply
    103,676.94x = 155,473.56 × 40,488.03
  4. Step 4: Simplify right side
    103,676.94x = 6,294,818,161.49
  5. Step 5: Solve for x
    x = 6,294,818,161.49/103,676.94
  6. Step 6: Final answer
    x = 60,715.70

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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.