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Finding the Fourth Proportional to 154,459.54, 213,044.22 and 141,753.76

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Solution

The fourth proportional to 154,459.54, 213,044.22 and 141,753.76 is: 195,519.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,459.54 : 213,044.22 = 141,753.76 : x
  2. Step 2: Convert to fraction form
    154,459.54/213,044.22 = 141,753.76/x
  3. Step 3: Cross multiply
    154,459.54x = 213,044.22 × 141,753.76
  4. Step 4: Simplify right side
    154,459.54x = 30,199,819,231.27
  5. Step 5: Solve for x
    x = 30,199,819,231.27/154,459.54
  6. Step 6: Final answer
    x = 195,519.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.