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Finding the Fourth Proportional to 332,991.40, 499,487.10 and 146,002.90

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Solution

The fourth proportional to 332,991.40, 499,487.10 and 146,002.90 is: 219,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,991.40 : 499,487.10 = 146,002.90 : x
  2. Step 2: Convert to fraction form
    332,991.40/499,487.10 = 146,002.90/x
  3. Step 3: Cross multiply
    332,991.40x = 499,487.10 × 146,002.90
  4. Step 4: Simplify right side
    332,991.40x = 72,926,565,112.59
  5. Step 5: Solve for x
    x = 72,926,565,112.59/332,991.40
  6. Step 6: Final answer
    x = 219,004.35

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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.