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Finding the Fourth Proportional to 405,844.11, 608,792.90 and 106,332.03

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Solution

The fourth proportional to 405,844.11, 608,792.90 and 106,332.03 is: 159,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,844.11 : 608,792.90 = 106,332.03 : x
  2. Step 2: Convert to fraction form
    405,844.11/608,792.90 = 106,332.03/x
  3. Step 3: Cross multiply
    405,844.11x = 608,792.90 × 106,332.03
  4. Step 4: Simplify right side
    405,844.11x = 64,734,184,374.93
  5. Step 5: Solve for x
    x = 64,734,184,374.93/405,844.11
  6. Step 6: Final answer
    x = 159,505.05

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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.