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Finding the Fourth Proportional to 118,796.18, 163,938.70 and 71,049.54

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Solution

The fourth proportional to 118,796.18, 163,938.70 and 71,049.54 is: 98,048.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,796.18 : 163,938.70 = 71,049.54 : x
  2. Step 2: Convert to fraction form
    118,796.18/163,938.70 = 71,049.54/x
  3. Step 3: Cross multiply
    118,796.18x = 163,938.70 × 71,049.54
  4. Step 4: Simplify right side
    118,796.18x = 11,647,769,223.20
  5. Step 5: Solve for x
    x = 11,647,769,223.20/118,796.18
  6. Step 6: Final answer
    x = 98,048.35

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1.5x scale

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.