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Finding the Fourth Proportional to 376,246.64, 519,186.11 and 223,258.50

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Solution

The fourth proportional to 376,246.64, 519,186.11 and 223,258.50 is: 308,076.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,246.64 : 519,186.11 = 223,258.50 : x
  2. Step 2: Convert to fraction form
    376,246.64/519,186.11 = 223,258.50/x
  3. Step 3: Cross multiply
    376,246.64x = 519,186.11 × 223,258.50
  4. Step 4: Simplify right side
    376,246.64x = 115,912,711,023.14
  5. Step 5: Solve for x
    x = 115,912,711,023.14/376,246.64
  6. Step 6: Final answer
    x = 308,076.40

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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.