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Finding the Fourth Proportional to 118,847.70, 178,271.55 and 113,015.70

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Solution

The fourth proportional to 118,847.70, 178,271.55 and 113,015.70 is: 169,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,847.70 : 178,271.55 = 113,015.70 : x
  2. Step 2: Convert to fraction form
    118,847.70/178,271.55 = 113,015.70/x
  3. Step 3: Cross multiply
    118,847.70x = 178,271.55 × 113,015.70
  4. Step 4: Simplify right side
    118,847.70x = 20,147,484,013.34
  5. Step 5: Solve for x
    x = 20,147,484,013.34/118,847.70
  6. Step 6: Final answer
    x = 169,523.55

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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.