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Finding the Fourth Proportional to 86,546.70, 129,820.05 and 49,092.30

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Solution

The fourth proportional to 86,546.70, 129,820.05 and 49,092.30 is: 73,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,546.70 : 129,820.05 = 49,092.30 : x
  2. Step 2: Convert to fraction form
    86,546.70/129,820.05 = 49,092.30/x
  3. Step 3: Cross multiply
    86,546.70x = 129,820.05 × 49,092.30
  4. Step 4: Simplify right side
    86,546.70x = 6,373,164,840.62
  5. Step 5: Solve for x
    x = 6,373,164,840.62/86,546.70
  6. Step 6: Final answer
    x = 73,638.45

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Similar ratio
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1.5x scale

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.