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Finding the Fourth Proportional to 235,936.40, 353,904.60 and 69,724.40

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Solution

The fourth proportional to 235,936.40, 353,904.60 and 69,724.40 is: 104,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,936.40 : 353,904.60 = 69,724.40 : x
  2. Step 2: Convert to fraction form
    235,936.40/353,904.60 = 69,724.40/x
  3. Step 3: Cross multiply
    235,936.40x = 353,904.60 × 69,724.40
  4. Step 4: Simplify right side
    235,936.40x = 24,675,785,892.24
  5. Step 5: Solve for x
    x = 24,675,785,892.24/235,936.40
  6. Step 6: Final answer
    x = 104,586.60

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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.