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Finding the Fourth Proportional to 308,747.14, 463,055.90 and 87,079.30

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Solution

The fourth proportional to 308,747.14, 463,055.90 and 87,079.30 is: 130,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,747.14 : 463,055.90 = 87,079.30 : x
  2. Step 2: Convert to fraction form
    308,747.14/463,055.90 = 87,079.30/x
  3. Step 3: Cross multiply
    308,747.14x = 463,055.90 × 87,079.30
  4. Step 4: Simplify right side
    308,747.14x = 40,322,583,632.87
  5. Step 5: Solve for x
    x = 40,322,583,632.87/308,747.14
  6. Step 6: Final answer
    x = 130,600.67

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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.