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Finding the Fourth Proportional to 328,453.89, 492,904.39 and 118,113.09

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Solution

The fourth proportional to 328,453.89, 492,904.39 and 118,113.09 is: 177,250.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,453.89 : 492,904.39 = 118,113.09 : x
  2. Step 2: Convert to fraction form
    328,453.89/492,904.39 = 118,113.09/x
  3. Step 3: Cross multiply
    328,453.89x = 492,904.39 × 118,113.09
  4. Step 4: Simplify right side
    328,453.89x = 58,218,460,577.47
  5. Step 5: Solve for x
    x = 58,218,460,577.47/328,453.89
  6. Step 6: Final answer
    x = 177,250.03

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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.