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Finding the Fourth Proportional to 282,940.79, 425,268.64 and 187,204.54

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Solution

The fourth proportional to 282,940.79, 425,268.64 and 187,204.54 is: 281,374.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,940.79 : 425,268.64 = 187,204.54 : x
  2. Step 2: Convert to fraction form
    282,940.79/425,268.64 = 187,204.54/x
  3. Step 3: Cross multiply
    282,940.79x = 425,268.64 × 187,204.54
  4. Step 4: Simplify right side
    282,940.79x = 79,612,220,893.22
  5. Step 5: Solve for x
    x = 79,612,220,893.22/282,940.79
  6. Step 6: Final answer
    x = 281,374.14

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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.