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Finding the Fourth Proportional to 99,524.70, 148,922.55 and 73,280.70

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Solution

The fourth proportional to 99,524.70, 148,922.55 and 73,280.70 is: 109,652.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,524.70 : 148,922.55 = 73,280.70 : x
  2. Step 2: Convert to fraction form
    99,524.70/148,922.55 = 73,280.70/x
  3. Step 3: Cross multiply
    99,524.70x = 148,922.55 × 73,280.70
  4. Step 4: Simplify right side
    99,524.70x = 10,913,148,709.79
  5. Step 5: Solve for x
    x = 10,913,148,709.79/99,524.70
  6. Step 6: Final answer
    x = 109,652.67

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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.