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Finding the Fourth Proportional to 60,714.70, 91,032.45 and 54,493.90

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Solution

The fourth proportional to 60,714.70, 91,032.45 and 54,493.90 is: 81,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,714.70 : 91,032.45 = 54,493.90 : x
  2. Step 2: Convert to fraction form
    60,714.70/91,032.45 = 54,493.90/x
  3. Step 3: Cross multiply
    60,714.70x = 91,032.45 × 54,493.90
  4. Step 4: Simplify right side
    60,714.70x = 4,960,713,227.06
  5. Step 5: Solve for x
    x = 4,960,713,227.06/60,714.70
  6. Step 6: Final answer
    x = 81,705.31

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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.