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Finding the Fourth Proportional to 79,021.53, 118,363.41 and 63,963.63

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Solution

The fourth proportional to 79,021.53, 118,363.41 and 63,963.63 is: 95,808.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,021.53 : 118,363.41 = 63,963.63 : x
  2. Step 2: Convert to fraction form
    79,021.53/118,363.41 = 63,963.63/x
  3. Step 3: Cross multiply
    79,021.53x = 118,363.41 × 63,963.63
  4. Step 4: Simplify right side
    79,021.53x = 7,570,953,362.78
  5. Step 5: Solve for x
    x = 7,570,953,362.78/79,021.53
  6. Step 6: Final answer
    x = 95,808.74

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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.