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Finding the Fourth Proportional to 235,759.20, 353,724.06 and 145,696.50

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Solution

The fourth proportional to 235,759.20, 353,724.06 and 145,696.50 is: 218,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,759.20 : 353,724.06 = 145,696.50 : x
  2. Step 2: Convert to fraction form
    235,759.20/353,724.06 = 145,696.50/x
  3. Step 3: Cross multiply
    235,759.20x = 353,724.06 × 145,696.50
  4. Step 4: Simplify right side
    235,759.20x = 51,536,357,507.79
  5. Step 5: Solve for x
    x = 51,536,357,507.79/235,759.20
  6. Step 6: Final answer
    x = 218,597.44

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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.