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Finding the Fourth Proportional to 73,100.90, 109,651.35 and 67,852.10

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Solution

The fourth proportional to 73,100.90, 109,651.35 and 67,852.10 is: 101,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,100.90 : 109,651.35 = 67,852.10 : x
  2. Step 2: Convert to fraction form
    73,100.90/109,651.35 = 67,852.10/x
  3. Step 3: Cross multiply
    73,100.90x = 109,651.35 × 67,852.10
  4. Step 4: Simplify right side
    73,100.90x = 7,440,074,365.34
  5. Step 5: Solve for x
    x = 7,440,074,365.34/73,100.90
  6. Step 6: Final answer
    x = 101,778.15

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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.