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Finding the Fourth Proportional to 133,220.64, 199,732.68 and 63,018

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Solution

The fourth proportional to 133,220.64, 199,732.68 and 63,018 is: 94,480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,220.64 : 199,732.68 = 63,018 : x
  2. Step 2: Convert to fraction form
    133,220.64/199,732.68 = 63,018/x
  3. Step 3: Cross multiply
    133,220.64x = 199,732.68 × 63,018
  4. Step 4: Simplify right side
    133,220.64x = 12,586,754,028.24
  5. Step 5: Solve for x
    x = 12,586,754,028.24/133,220.64
  6. Step 6: Final answer
    x = 94,480.51

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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.