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Finding the Fourth Proportional to 176,428.48, 264,644.09 and 43,309.89

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Solution

The fourth proportional to 176,428.48, 264,644.09 and 43,309.89 is: 64,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,428.48 : 264,644.09 = 43,309.89 : x
  2. Step 2: Convert to fraction form
    176,428.48/264,644.09 = 43,309.89/x
  3. Step 3: Cross multiply
    176,428.48x = 264,644.09 × 43,309.89
  4. Step 4: Simplify right side
    176,428.48x = 11,461,706,251.10
  5. Step 5: Solve for x
    x = 11,461,706,251.10/176,428.48
  6. Step 6: Final answer
    x = 64,965.17

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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.