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Finding the Fourth Proportional to 468,015.40, 702,023.07 and 131,105.93

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Solution

The fourth proportional to 468,015.40, 702,023.07 and 131,105.93 is: 196,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,015.40 : 702,023.07 = 131,105.93 : x
  2. Step 2: Convert to fraction form
    468,015.40/702,023.07 = 131,105.93/x
  3. Step 3: Cross multiply
    468,015.40x = 702,023.07 × 131,105.93
  4. Step 4: Simplify right side
    468,015.40x = 92,039,387,473.81
  5. Step 5: Solve for x
    x = 92,039,387,473.81/468,015.40
  6. Step 6: Final answer
    x = 196,658.89

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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.