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Finding the Fourth Proportional to 281,953.77, 423,018.33 and 92,415.79

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Solution

The fourth proportional to 281,953.77, 423,018.33 and 92,415.79 is: 138,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,953.77 : 423,018.33 = 92,415.79 : x
  2. Step 2: Convert to fraction form
    281,953.77/423,018.33 = 92,415.79/x
  3. Step 3: Cross multiply
    281,953.77x = 423,018.33 × 92,415.79
  4. Step 4: Simplify right side
    281,953.77x = 39,093,573,151.43
  5. Step 5: Solve for x
    x = 39,093,573,151.43/281,953.77
  6. Step 6: Final answer
    x = 138,652.42

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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.