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Finding the Fourth Proportional to 610,546.16, 915,862.97 and 161,262.55

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Solution

The fourth proportional to 610,546.16, 915,862.97 and 161,262.55 is: 241,905.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,546.16 : 915,862.97 = 161,262.55 : x
  2. Step 2: Convert to fraction form
    610,546.16/915,862.97 = 161,262.55/x
  3. Step 3: Cross multiply
    610,546.16x = 915,862.97 × 161,262.55
  4. Step 4: Simplify right side
    610,546.16x = 147,694,399,540.76
  5. Step 5: Solve for x
    x = 147,694,399,540.76/610,546.16
  6. Step 6: Final answer
    x = 241,905.38

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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.