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Finding the Fourth Proportional to 55,339.08, 83,009.43 and 52,649.88

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Solution

The fourth proportional to 55,339.08, 83,009.43 and 52,649.88 is: 78,975.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,339.08 : 83,009.43 = 52,649.88 : x
  2. Step 2: Convert to fraction form
    55,339.08/83,009.43 = 52,649.88/x
  3. Step 3: Cross multiply
    55,339.08x = 83,009.43 × 52,649.88
  4. Step 4: Simplify right side
    55,339.08x = 4,370,436,528.37
  5. Step 5: Solve for x
    x = 4,370,436,528.37/55,339.08
  6. Step 6: Final answer
    x = 78,975.59

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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.