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Finding the Fourth Proportional to 417,936.96, 626,905.44 and 168,444

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Solution

The fourth proportional to 417,936.96, 626,905.44 and 168,444 is: 252,666.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,936.96 : 626,905.44 = 168,444 : x
  2. Step 2: Convert to fraction form
    417,936.96/626,905.44 = 168,444/x
  3. Step 3: Cross multiply
    417,936.96x = 626,905.44 × 168,444
  4. Step 4: Simplify right side
    417,936.96x = 105,598,459,935.36
  5. Step 5: Solve for x
    x = 105,598,459,935.36/417,936.96
  6. Step 6: Final answer
    x = 252,666.00

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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.