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Finding the Fourth Proportional to 272,039.80, 408,059.70 and 183,566.20

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Solution

The fourth proportional to 272,039.80, 408,059.70 and 183,566.20 is: 275,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,039.80 : 408,059.70 = 183,566.20 : x
  2. Step 2: Convert to fraction form
    272,039.80/408,059.70 = 183,566.20/x
  3. Step 3: Cross multiply
    272,039.80x = 408,059.70 × 183,566.20
  4. Step 4: Simplify right side
    272,039.80x = 74,905,968,502.14
  5. Step 5: Solve for x
    x = 74,905,968,502.14/272,039.80
  6. Step 6: Final answer
    x = 275,349.30

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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.