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Finding the Fourth Proportional to 433,080.33, 649,613.33 and 129,475.18

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Solution

The fourth proportional to 433,080.33, 649,613.33 and 129,475.18 is: 194,210.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,080.33 : 649,613.33 = 129,475.18 : x
  2. Step 2: Convert to fraction form
    433,080.33/649,613.33 = 129,475.18/x
  3. Step 3: Cross multiply
    433,080.33x = 649,613.33 × 129,475.18
  4. Step 4: Simplify right side
    433,080.33x = 84,108,805,491.43
  5. Step 5: Solve for x
    x = 84,108,805,491.43/433,080.33
  6. Step 6: Final answer
    x = 194,210.64

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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.