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Finding the Fourth Proportional to 332,720.20, 499,080.30 and 133,071.40

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Solution

The fourth proportional to 332,720.20, 499,080.30 and 133,071.40 is: 199,607.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,720.20 : 499,080.30 = 133,071.40 : x
  2. Step 2: Convert to fraction form
    332,720.20/499,080.30 = 133,071.40/x
  3. Step 3: Cross multiply
    332,720.20x = 499,080.30 × 133,071.40
  4. Step 4: Simplify right side
    332,720.20x = 66,413,314,233.42
  5. Step 5: Solve for x
    x = 66,413,314,233.42/332,720.20
  6. Step 6: Final answer
    x = 199,607.10

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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.