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Finding the Fourth Proportional to 73,590.40, 110,166.90 and 65,717.20

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Solution

The fourth proportional to 73,590.40, 110,166.90 and 65,717.20 is: 98,380.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,590.40 : 110,166.90 = 65,717.20 : x
  2. Step 2: Convert to fraction form
    73,590.40/110,166.90 = 65,717.20/x
  3. Step 3: Cross multiply
    73,590.40x = 110,166.90 × 65,717.20
  4. Step 4: Simplify right side
    73,590.40x = 7,239,860,200.68
  5. Step 5: Solve for x
    x = 7,239,860,200.68/73,590.40
  6. Step 6: Final answer
    x = 98,380.50

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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.