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Finding the Fourth Proportional to 189,119.79, 283,680.60 and 56,002.56

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Solution

The fourth proportional to 189,119.79, 283,680.60 and 56,002.56 is: 84,004.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,119.79 : 283,680.60 = 56,002.56 : x
  2. Step 2: Convert to fraction form
    189,119.79/283,680.60 = 56,002.56/x
  3. Step 3: Cross multiply
    189,119.79x = 283,680.60 × 56,002.56
  4. Step 4: Simplify right side
    189,119.79x = 15,886,839,822.34
  5. Step 5: Solve for x
    x = 15,886,839,822.34/189,119.79
  6. Step 6: Final answer
    x = 84,004.11

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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.