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Finding the Fourth Proportional to 74,819, 103,250.22 and 41,285

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Solution

The fourth proportional to 74,819, 103,250.22 and 41,285 is: 56,973.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,819 : 103,250.22 = 41,285 : x
  2. Step 2: Convert to fraction form
    74,819/103,250.22 = 41,285/x
  3. Step 3: Cross multiply
    74,819x = 103,250.22 × 41,285
  4. Step 4: Simplify right side
    74,819x = 4,262,685,332.70
  5. Step 5: Solve for x
    x = 4,262,685,332.70/74,819
  6. Step 6: Final answer
    x = 56,973.30

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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.