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Finding the Fourth Proportional to 317,924.51, 438,735.72 and 174,693.77

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Solution

The fourth proportional to 317,924.51, 438,735.72 and 174,693.77 is: 241,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,924.51 : 438,735.72 = 174,693.77 : x
  2. Step 2: Convert to fraction form
    317,924.51/438,735.72 = 174,693.77/x
  3. Step 3: Cross multiply
    317,924.51x = 438,735.72 × 174,693.77
  4. Step 4: Simplify right side
    317,924.51x = 76,644,396,960.46
  5. Step 5: Solve for x
    x = 76,644,396,960.46/317,924.51
  6. Step 6: Final answer
    x = 241,077.35

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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.