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Finding the Fourth Proportional to 332,025.40, 498,102.90 and 142,485.40

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Solution

The fourth proportional to 332,025.40, 498,102.90 and 142,485.40 is: 213,755.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,025.40 : 498,102.90 = 142,485.40 : x
  2. Step 2: Convert to fraction form
    332,025.40/498,102.90 = 142,485.40/x
  3. Step 3: Cross multiply
    332,025.40x = 498,102.90 × 142,485.40
  4. Step 4: Simplify right side
    332,025.40x = 70,972,390,947.66
  5. Step 5: Solve for x
    x = 70,972,390,947.66/332,025.40
  6. Step 6: Final answer
    x = 213,755.91

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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.