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Finding the Fourth Proportional to 127,401.53, 190,920.92 and 93,857.81

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Solution

The fourth proportional to 127,401.53, 190,920.92 and 93,857.81 is: 140,653.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,401.53 : 190,920.92 = 93,857.81 : x
  2. Step 2: Convert to fraction form
    127,401.53/190,920.92 = 93,857.81/x
  3. Step 3: Cross multiply
    127,401.53x = 190,920.92 × 93,857.81
  4. Step 4: Simplify right side
    127,401.53x = 17,919,418,010.49
  5. Step 5: Solve for x
    x = 17,919,418,010.49/127,401.53
  6. Step 6: Final answer
    x = 140,653.09

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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.