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Finding the Fourth Proportional to 366,388.49, 549,516.85 and 129,732.41

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Solution

The fourth proportional to 366,388.49, 549,516.85 and 129,732.41 is: 194,575.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,388.49 : 549,516.85 = 129,732.41 : x
  2. Step 2: Convert to fraction form
    366,388.49/549,516.85 = 129,732.41/x
  3. Step 3: Cross multiply
    366,388.49x = 549,516.85 × 129,732.41
  4. Step 4: Simplify right side
    366,388.49x = 71,290,142,214.19
  5. Step 5: Solve for x
    x = 71,290,142,214.19/366,388.49
  6. Step 6: Final answer
    x = 194,575.28

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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.