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Finding the Fourth Proportional to 129,059.70, 193,735.35 and 99,608.10

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Solution

The fourth proportional to 129,059.70, 193,735.35 and 99,608.10 is: 149,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,059.70 : 193,735.35 = 99,608.10 : x
  2. Step 2: Convert to fraction form
    129,059.70/193,735.35 = 99,608.10/x
  3. Step 3: Cross multiply
    129,059.70x = 193,735.35 × 99,608.10
  4. Step 4: Simplify right side
    129,059.70x = 19,297,610,116.34
  5. Step 5: Solve for x
    x = 19,297,610,116.34/129,059.70
  6. Step 6: Final answer
    x = 149,524.68

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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.