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Finding the Fourth Proportional to 262,442.52, 393,672.60 and 84,951

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Solution

The fourth proportional to 262,442.52, 393,672.60 and 84,951 is: 127,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,442.52 : 393,672.60 = 84,951 : x
  2. Step 2: Convert to fraction form
    262,442.52/393,672.60 = 84,951/x
  3. Step 3: Cross multiply
    262,442.52x = 393,672.60 × 84,951
  4. Step 4: Simplify right side
    262,442.52x = 33,442,881,042.60
  5. Step 5: Solve for x
    x = 33,442,881,042.60/262,442.52
  6. Step 6: Final answer
    x = 127,429.35

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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.