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Finding the Fourth Proportional to 210,087.54, 315,049.08 and 73,276.10

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Solution

The fourth proportional to 210,087.54, 315,049.08 and 73,276.10 is: 109,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,087.54 : 315,049.08 = 73,276.10 : x
  2. Step 2: Convert to fraction form
    210,087.54/315,049.08 = 73,276.10/x
  3. Step 3: Cross multiply
    210,087.54x = 315,049.08 × 73,276.10
  4. Step 4: Simplify right side
    210,087.54x = 23,085,567,890.99
  5. Step 5: Solve for x
    x = 23,085,567,890.99/210,087.54
  6. Step 6: Final answer
    x = 109,885.47

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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.