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Finding the Fourth Proportional to 317,876.36, 438,667.54 and 174,633.32

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Solution

The fourth proportional to 317,876.36, 438,667.54 and 174,633.32 is: 240,992.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,876.36 : 438,667.54 = 174,633.32 : x
  2. Step 2: Convert to fraction form
    317,876.36/438,667.54 = 174,633.32/x
  3. Step 3: Cross multiply
    317,876.36x = 438,667.54 × 174,633.32
  4. Step 4: Simplify right side
    317,876.36x = 76,605,968,886.43
  5. Step 5: Solve for x
    x = 76,605,968,886.43/317,876.36
  6. Step 6: Final answer
    x = 240,992.97

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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.