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Finding the Fourth Proportional to 123,218.01, 184,845.15 and 38,959.11

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Solution

The fourth proportional to 123,218.01, 184,845.15 and 38,959.11 is: 58,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,218.01 : 184,845.15 = 38,959.11 : x
  2. Step 2: Convert to fraction form
    123,218.01/184,845.15 = 38,959.11/x
  3. Step 3: Cross multiply
    123,218.01x = 184,845.15 × 38,959.11
  4. Step 4: Simplify right side
    123,218.01x = 7,201,402,531.82
  5. Step 5: Solve for x
    x = 7,201,402,531.82/123,218.01
  6. Step 6: Final answer
    x = 58,444.40

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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.