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Finding the Fourth Proportional to 79,463.25, 109,673.87 and 45,929.25

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Solution

The fourth proportional to 79,463.25, 109,673.87 and 45,929.25 is: 63,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,463.25 : 109,673.87 = 45,929.25 : x
  2. Step 2: Convert to fraction form
    79,463.25/109,673.87 = 45,929.25/x
  3. Step 3: Cross multiply
    79,463.25x = 109,673.87 × 45,929.25
  4. Step 4: Simplify right side
    79,463.25x = 5,037,238,364.05
  5. Step 5: Solve for x
    x = 5,037,238,364.05/79,463.25
  6. Step 6: Final answer
    x = 63,390.79

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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.