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Finding the Fourth Proportional to 239,887.82, 330,925.62 and 143,023.36

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Solution

The fourth proportional to 239,887.82, 330,925.62 and 143,023.36 is: 197,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,887.82 : 330,925.62 = 143,023.36 : x
  2. Step 2: Convert to fraction form
    239,887.82/330,925.62 = 143,023.36/x
  3. Step 3: Cross multiply
    239,887.82x = 330,925.62 × 143,023.36
  4. Step 4: Simplify right side
    239,887.82x = 47,330,095,537.96
  5. Step 5: Solve for x
    x = 47,330,095,537.96/239,887.82
  6. Step 6: Final answer
    x = 197,300.96

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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.