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Finding the Fourth Proportional to 118,469.02, 163,486.82 and 64,754

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Solution

The fourth proportional to 118,469.02, 163,486.82 and 64,754 is: 89,360.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,469.02 : 163,486.82 = 64,754 : x
  2. Step 2: Convert to fraction form
    118,469.02/163,486.82 = 64,754/x
  3. Step 3: Cross multiply
    118,469.02x = 163,486.82 × 64,754
  4. Step 4: Simplify right side
    118,469.02x = 10,586,425,542.28
  5. Step 5: Solve for x
    x = 10,586,425,542.28/118,469.02
  6. Step 6: Final answer
    x = 89,360.29

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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.