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Finding the Fourth Proportional to 307,508.52, 424,362.44 and 171,539.08

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Solution

The fourth proportional to 307,508.52, 424,362.44 and 171,539.08 is: 236,724.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,508.52 : 424,362.44 = 171,539.08 : x
  2. Step 2: Convert to fraction form
    307,508.52/424,362.44 = 171,539.08/x
  3. Step 3: Cross multiply
    307,508.52x = 424,362.44 × 171,539.08
  4. Step 4: Simplify right side
    307,508.52x = 72,794,742,544.16
  5. Step 5: Solve for x
    x = 72,794,742,544.16/307,508.52
  6. Step 6: Final answer
    x = 236,724.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.