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Finding the Fourth Proportional to 248,812.70, 373,219.05 and 91,057.10

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Solution

The fourth proportional to 248,812.70, 373,219.05 and 91,057.10 is: 136,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,812.70 : 373,219.05 = 91,057.10 : x
  2. Step 2: Convert to fraction form
    248,812.70/373,219.05 = 91,057.10/x
  3. Step 3: Cross multiply
    248,812.70x = 373,219.05 × 91,057.10
  4. Step 4: Simplify right side
    248,812.70x = 33,984,244,357.76
  5. Step 5: Solve for x
    x = 33,984,244,357.76/248,812.70
  6. Step 6: Final answer
    x = 136,585.65

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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.