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Finding the Fourth Proportional to 111,380.10, 167,070.15 and 97,820.70

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Solution

The fourth proportional to 111,380.10, 167,070.15 and 97,820.70 is: 146,731.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,380.10 : 167,070.15 = 97,820.70 : x
  2. Step 2: Convert to fraction form
    111,380.10/167,070.15 = 97,820.70/x
  3. Step 3: Cross multiply
    111,380.10x = 167,070.15 × 97,820.70
  4. Step 4: Simplify right side
    111,380.10x = 16,342,919,022.11
  5. Step 5: Solve for x
    x = 16,342,919,022.11/111,380.10
  6. Step 6: Final answer
    x = 146,731.05

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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.