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Finding the Fourth Proportional to 123,316.97, 184,976.88 and 43,357.28

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Solution

The fourth proportional to 123,316.97, 184,976.88 and 43,357.28 is: 65,036.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,316.97 : 184,976.88 = 43,357.28 : x
  2. Step 2: Convert to fraction form
    123,316.97/184,976.88 = 43,357.28/x
  3. Step 3: Cross multiply
    123,316.97x = 184,976.88 × 43,357.28
  4. Step 4: Simplify right side
    123,316.97x = 8,020,094,379.69
  5. Step 5: Solve for x
    x = 8,020,094,379.69/123,316.97
  6. Step 6: Final answer
    x = 65,036.42

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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.