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Finding the Fourth Proportional to 73,920.80, 110,897.40 and 29,536.40

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Solution

The fourth proportional to 73,920.80, 110,897.40 and 29,536.40 is: 44,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,920.80 : 110,897.40 = 29,536.40 : x
  2. Step 2: Convert to fraction form
    73,920.80/110,897.40 = 29,536.40/x
  3. Step 3: Cross multiply
    73,920.80x = 110,897.40 × 29,536.40
  4. Step 4: Simplify right side
    73,920.80x = 3,275,509,965.36
  5. Step 5: Solve for x
    x = 3,275,509,965.36/73,920.80
  6. Step 6: Final answer
    x = 44,311.07

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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.