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Finding the Fourth Proportional to 96,997.53, 133,836.53 and 56,703.50

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Solution

The fourth proportional to 96,997.53, 133,836.53 and 56,703.50 is: 78,239.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,997.53 : 133,836.53 = 56,703.50 : x
  2. Step 2: Convert to fraction form
    96,997.53/133,836.53 = 56,703.50/x
  3. Step 3: Cross multiply
    96,997.53x = 133,836.53 × 56,703.50
  4. Step 4: Simplify right side
    96,997.53x = 7,588,998,726.15
  5. Step 5: Solve for x
    x = 7,588,998,726.15/96,997.53
  6. Step 6: Final answer
    x = 78,239.09

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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.