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Finding the Fourth Proportional to 389,358.54, 584,095.32 and 123,058.62

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Solution

The fourth proportional to 389,358.54, 584,095.32 and 123,058.62 is: 184,606.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,358.54 : 584,095.32 = 123,058.62 : x
  2. Step 2: Convert to fraction form
    389,358.54/584,095.32 = 123,058.62/x
  3. Step 3: Cross multiply
    389,358.54x = 584,095.32 × 123,058.62
  4. Step 4: Simplify right side
    389,358.54x = 71,877,964,027.66
  5. Step 5: Solve for x
    x = 71,877,964,027.66/389,358.54
  6. Step 6: Final answer
    x = 184,606.11

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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.