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Finding the Fourth Proportional to 73,564.60, 110,577.30 and 72,182.20

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Solution

The fourth proportional to 73,564.60, 110,577.30 and 72,182.20 is: 108,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,564.60 : 110,577.30 = 72,182.20 : x
  2. Step 2: Convert to fraction form
    73,564.60/110,577.30 = 72,182.20/x
  3. Step 3: Cross multiply
    73,564.60x = 110,577.30 × 72,182.20
  4. Step 4: Simplify right side
    73,564.60x = 7,981,712,784.06
  5. Step 5: Solve for x
    x = 7,981,712,784.06/73,564.60
  6. Step 6: Final answer
    x = 108,499.37

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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.