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Finding the Fourth Proportional to 176,325.40, 264,639.30 and 71,219.80

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Solution

The fourth proportional to 176,325.40, 264,639.30 and 71,219.80 is: 106,890.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,325.40 : 264,639.30 = 71,219.80 : x
  2. Step 2: Convert to fraction form
    176,325.40/264,639.30 = 71,219.80/x
  3. Step 3: Cross multiply
    176,325.40x = 264,639.30 × 71,219.80
  4. Step 4: Simplify right side
    176,325.40x = 18,847,558,018.14
  5. Step 5: Solve for x
    x = 18,847,558,018.14/176,325.40
  6. Step 6: Final answer
    x = 106,890.77

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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.