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Finding the Fourth Proportional to 208,300.62, 312,450.90 and 58,534.86

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Solution

The fourth proportional to 208,300.62, 312,450.90 and 58,534.86 is: 87,802.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,300.62 : 312,450.90 = 58,534.86 : x
  2. Step 2: Convert to fraction form
    208,300.62/312,450.90 = 58,534.86/x
  3. Step 3: Cross multiply
    208,300.62x = 312,450.90 × 58,534.86
  4. Step 4: Simplify right side
    208,300.62x = 18,289,269,688.37
  5. Step 5: Solve for x
    x = 18,289,269,688.37/208,300.62
  6. Step 6: Final answer
    x = 87,802.28

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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.