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Finding the Fourth Proportional to 163,958.48, 225,787.08 and 142,438.48

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Solution

The fourth proportional to 163,958.48, 225,787.08 and 142,438.48 is: 196,151.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,958.48 : 225,787.08 = 142,438.48 : x
  2. Step 2: Convert to fraction form
    163,958.48/225,787.08 = 142,438.48/x
  3. Step 3: Cross multiply
    163,958.48x = 225,787.08 × 142,438.48
  4. Step 4: Simplify right side
    163,958.48x = 32,160,768,478.84
  5. Step 5: Solve for x
    x = 32,160,768,478.84/163,958.48
  6. Step 6: Final answer
    x = 196,151.91

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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.