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Finding the Fourth Proportional to 405,165.51, 607,563.59 and 168,366.87

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Solution

The fourth proportional to 405,165.51, 607,563.59 and 168,366.87 is: 252,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,165.51 : 607,563.59 = 168,366.87 : x
  2. Step 2: Convert to fraction form
    405,165.51/607,563.59 = 168,366.87/x
  3. Step 3: Cross multiply
    405,165.51x = 607,563.59 × 168,366.87
  4. Step 4: Simplify right side
    405,165.51x = 102,293,579,132.43
  5. Step 5: Solve for x
    x = 102,293,579,132.43/405,165.51
  6. Step 6: Final answer
    x = 252,473.56

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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.