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Finding the Fourth Proportional to 79,553.78, 109,783.82 and 46,867.17

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Solution

The fourth proportional to 79,553.78, 109,783.82 and 46,867.17 is: 64,676.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,553.78 : 109,783.82 = 46,867.17 : x
  2. Step 2: Convert to fraction form
    79,553.78/109,783.82 = 46,867.17/x
  3. Step 3: Cross multiply
    79,553.78x = 109,783.82 × 46,867.17
  4. Step 4: Simplify right side
    79,553.78x = 5,145,256,955.19
  5. Step 5: Solve for x
    x = 5,145,256,955.19/79,553.78
  6. Step 6: Final answer
    x = 64,676.46

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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.