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Finding the Fourth Proportional to 354,473.40, 531,969.30 and 236,105.40

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Solution

The fourth proportional to 354,473.40, 531,969.30 and 236,105.40 is: 354,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,473.40 : 531,969.30 = 236,105.40 : x
  2. Step 2: Convert to fraction form
    354,473.40/531,969.30 = 236,105.40/x
  3. Step 3: Cross multiply
    354,473.40x = 531,969.30 × 236,105.40
  4. Step 4: Simplify right side
    354,473.40x = 125,600,824,364.22
  5. Step 5: Solve for x
    x = 125,600,824,364.22/354,473.40
  6. Step 6: Final answer
    x = 354,330.75

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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.