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Finding the Fourth Proportional to 189,263.40, 283,812.01 and 70,851.70

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Solution

The fourth proportional to 189,263.40, 283,812.01 and 70,851.70 is: 106,246.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,263.40 : 283,812.01 = 70,851.70 : x
  2. Step 2: Convert to fraction form
    189,263.40/283,812.01 = 70,851.70/x
  3. Step 3: Cross multiply
    189,263.40x = 283,812.01 × 70,851.70
  4. Step 4: Simplify right side
    189,263.40x = 20,108,563,388.92
  5. Step 5: Solve for x
    x = 20,108,563,388.92/189,263.40
  6. Step 6: Final answer
    x = 106,246.44

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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.