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Finding the Fourth Proportional to 331,959.72, 458,143.14 and 188,741.22

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Solution

The fourth proportional to 331,959.72, 458,143.14 and 188,741.22 is: 260,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,959.72 : 458,143.14 = 188,741.22 : x
  2. Step 2: Convert to fraction form
    331,959.72/458,143.14 = 188,741.22/x
  3. Step 3: Cross multiply
    331,959.72x = 458,143.14 × 188,741.22
  4. Step 4: Simplify right side
    331,959.72x = 86,470,495,178.23
  5. Step 5: Solve for x
    x = 86,470,495,178.23/331,959.72
  6. Step 6: Final answer
    x = 260,484.90

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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.