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Finding the Fourth Proportional to 75,619.80, 113,478.30 and 44,029.80

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Solution

The fourth proportional to 75,619.80, 113,478.30 and 44,029.80 is: 66,073.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,619.80 : 113,478.30 = 44,029.80 : x
  2. Step 2: Convert to fraction form
    75,619.80/113,478.30 = 44,029.80/x
  3. Step 3: Cross multiply
    75,619.80x = 113,478.30 × 44,029.80
  4. Step 4: Simplify right side
    75,619.80x = 4,996,426,853.34
  5. Step 5: Solve for x
    x = 4,996,426,853.34/75,619.80
  6. Step 6: Final answer
    x = 66,073.00

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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.