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Finding the Fourth Proportional to 45,659.55, 68,494.79 and 19,360.88

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Solution

The fourth proportional to 45,659.55, 68,494.79 and 19,360.88 is: 29,043.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,659.55 : 68,494.79 = 19,360.88 : x
  2. Step 2: Convert to fraction form
    45,659.55/68,494.79 = 19,360.88/x
  3. Step 3: Cross multiply
    45,659.55x = 68,494.79 × 19,360.88
  4. Step 4: Simplify right side
    45,659.55x = 1,326,119,115.74
  5. Step 5: Solve for x
    x = 1,326,119,115.74/45,659.55
  6. Step 6: Final answer
    x = 29,043.63

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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.