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Finding the Fourth Proportional to 313,795.50, 470,693.25 and 92,179.50

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Solution

The fourth proportional to 313,795.50, 470,693.25 and 92,179.50 is: 138,269.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,795.50 : 470,693.25 = 92,179.50 : x
  2. Step 2: Convert to fraction form
    313,795.50/470,693.25 = 92,179.50/x
  3. Step 3: Cross multiply
    313,795.50x = 470,693.25 × 92,179.50
  4. Step 4: Simplify right side
    313,795.50x = 43,388,268,438.38
  5. Step 5: Solve for x
    x = 43,388,268,438.38/313,795.50
  6. Step 6: Final answer
    x = 138,269.25

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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.