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Finding the Fourth Proportional to 389,357.49, 584,032.62 and 123,118.17

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Solution

The fourth proportional to 389,357.49, 584,032.62 and 123,118.17 is: 184,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,357.49 : 584,032.62 = 123,118.17 : x
  2. Step 2: Convert to fraction form
    389,357.49/584,032.62 = 123,118.17/x
  3. Step 3: Cross multiply
    389,357.49x = 584,032.62 × 123,118.17
  4. Step 4: Simplify right side
    389,357.49x = 71,905,027,394.71
  5. Step 5: Solve for x
    x = 71,905,027,394.71/389,357.49
  6. Step 6: Final answer
    x = 184,676.11

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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.