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Finding the Fourth Proportional to 272,636.46, 408,905.37 and 83,051.46

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Solution

The fourth proportional to 272,636.46, 408,905.37 and 83,051.46 is: 124,562.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,636.46 : 408,905.37 = 83,051.46 : x
  2. Step 2: Convert to fraction form
    272,636.46/408,905.37 = 83,051.46/x
  3. Step 3: Cross multiply
    272,636.46x = 408,905.37 × 83,051.46
  4. Step 4: Simplify right side
    272,636.46x = 33,960,187,980.34
  5. Step 5: Solve for x
    x = 33,960,187,980.34/272,636.46
  6. Step 6: Final answer
    x = 124,562.17

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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.