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Finding the Fourth Proportional to 56,893.94, 78,497.45 and 34,221.58

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Solution

The fourth proportional to 56,893.94, 78,497.45 and 34,221.58 is: 47,216.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,893.94 : 78,497.45 = 34,221.58 : x
  2. Step 2: Convert to fraction form
    56,893.94/78,497.45 = 34,221.58/x
  3. Step 3: Cross multiply
    56,893.94x = 78,497.45 × 34,221.58
  4. Step 4: Simplify right side
    56,893.94x = 2,686,306,593.86
  5. Step 5: Solve for x
    x = 2,686,306,593.86/56,893.94
  6. Step 6: Final answer
    x = 47,216.04

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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.