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Finding the Fourth Proportional to 251,086.84, 346,560.18 and 143,719.12

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Solution

The fourth proportional to 251,086.84, 346,560.18 and 143,719.12 is: 198,366.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,086.84 : 346,560.18 = 143,719.12 : x
  2. Step 2: Convert to fraction form
    251,086.84/346,560.18 = 143,719.12/x
  3. Step 3: Cross multiply
    251,086.84x = 346,560.18 × 143,719.12
  4. Step 4: Simplify right side
    251,086.84x = 49,807,324,096.64
  5. Step 5: Solve for x
    x = 49,807,324,096.64/251,086.84
  6. Step 6: Final answer
    x = 198,366.92

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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.