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Finding the Fourth Proportional to 252,343.88, 348,234.87 and 137,622.76

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Solution

The fourth proportional to 252,343.88, 348,234.87 and 137,622.76 is: 189,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,343.88 : 348,234.87 = 137,622.76 : x
  2. Step 2: Convert to fraction form
    252,343.88/348,234.87 = 137,622.76/x
  3. Step 3: Cross multiply
    252,343.88x = 348,234.87 × 137,622.76
  4. Step 4: Simplify right side
    252,343.88x = 47,925,043,937.64
  5. Step 5: Solve for x
    x = 47,925,043,937.64/252,343.88
  6. Step 6: Final answer
    x = 189,919.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.