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Finding the Fourth Proportional to 405,141.80, 607,226.70 and 168,362.60

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Solution

The fourth proportional to 405,141.80, 607,226.70 and 168,362.60 is: 252,341.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,141.80 : 607,226.70 = 168,362.60 : x
  2. Step 2: Convert to fraction form
    405,141.80/607,226.70 = 168,362.60/x
  3. Step 3: Cross multiply
    405,141.80x = 607,226.70 × 168,362.60
  4. Step 4: Simplify right side
    405,141.80x = 102,234,266,001.42
  5. Step 5: Solve for x
    x = 102,234,266,001.42/405,141.80
  6. Step 6: Final answer
    x = 252,341.94

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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.