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Finding the Fourth Proportional to 332,705.20, 499,057.80 and 133,056.40

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Solution

The fourth proportional to 332,705.20, 499,057.80 and 133,056.40 is: 199,584.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,705.20 : 499,057.80 = 133,056.40 : x
  2. Step 2: Convert to fraction form
    332,705.20/499,057.80 = 133,056.40/x
  3. Step 3: Cross multiply
    332,705.20x = 499,057.80 × 133,056.40
  4. Step 4: Simplify right side
    332,705.20x = 66,402,834,259.92
  5. Step 5: Solve for x
    x = 66,402,834,259.92/332,705.20
  6. Step 6: Final answer
    x = 199,584.60

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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.