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Finding the Fourth Proportional to 56,468.88, 84,764.61 and 42,468.84

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Solution

The fourth proportional to 56,468.88, 84,764.61 and 42,468.84 is: 63,749.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,468.88 : 84,764.61 = 42,468.84 : x
  2. Step 2: Convert to fraction form
    56,468.88/84,764.61 = 42,468.84/x
  3. Step 3: Cross multiply
    56,468.88x = 84,764.61 × 42,468.84
  4. Step 4: Simplify right side
    56,468.88x = 3,599,854,659.75
  5. Step 5: Solve for x
    x = 3,599,854,659.75/56,468.88
  6. Step 6: Final answer
    x = 63,749.35

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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.