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Finding the Fourth Proportional to 159,436.46, 239,140.10 and 48,628.46

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Solution

The fourth proportional to 159,436.46, 239,140.10 and 48,628.46 is: 72,938.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,436.46 : 239,140.10 = 48,628.46 : x
  2. Step 2: Convert to fraction form
    159,436.46/239,140.10 = 48,628.46/x
  3. Step 3: Cross multiply
    159,436.46x = 239,140.10 × 48,628.46
  4. Step 4: Simplify right side
    159,436.46x = 11,629,014,787.25
  5. Step 5: Solve for x
    x = 11,629,014,787.25/159,436.46
  6. Step 6: Final answer
    x = 72,938.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.