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Finding the Fourth Proportional to 492,342.59, 738,513.89 and 118,365.59

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Solution

The fourth proportional to 492,342.59, 738,513.89 and 118,365.59 is: 177,548.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,342.59 : 738,513.89 = 118,365.59 : x
  2. Step 2: Convert to fraction form
    492,342.59/738,513.89 = 118,365.59/x
  3. Step 3: Cross multiply
    492,342.59x = 738,513.89 × 118,365.59
  4. Step 4: Simplify right side
    492,342.59x = 87,414,628,028.65
  5. Step 5: Solve for x
    x = 87,414,628,028.65/492,342.59
  6. Step 6: Final answer
    x = 177,548.38

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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.