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Finding the Fourth Proportional to 129,573.87, 193,898.90 and 89,600.98

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Solution

The fourth proportional to 129,573.87, 193,898.90 and 89,600.98 is: 134,082.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,573.87 : 193,898.90 = 89,600.98 : x
  2. Step 2: Convert to fraction form
    129,573.87/193,898.90 = 89,600.98/x
  3. Step 3: Cross multiply
    129,573.87x = 193,898.90 × 89,600.98
  4. Step 4: Simplify right side
    129,573.87x = 17,373,530,043.42
  5. Step 5: Solve for x
    x = 17,373,530,043.42/129,573.87
  6. Step 6: Final answer
    x = 134,082.05

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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.