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Finding the Fourth Proportional to 208,039.96, 312,073.91 and 73,087.62

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Solution

The fourth proportional to 208,039.96, 312,073.91 and 73,087.62 is: 109,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,039.96 : 312,073.91 = 73,087.62 : x
  2. Step 2: Convert to fraction form
    208,039.96/312,073.91 = 73,087.62/x
  3. Step 3: Cross multiply
    208,039.96x = 312,073.91 × 73,087.62
  4. Step 4: Simplify right side
    208,039.96x = 22,808,738,495.48
  5. Step 5: Solve for x
    x = 22,808,738,495.48/208,039.96
  6. Step 6: Final answer
    x = 109,636.34

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1.5x scale

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.