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Finding the Fourth Proportional to 148,909.80, 223,343.10 and 43,717.80

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Solution

The fourth proportional to 148,909.80, 223,343.10 and 43,717.80 is: 65,570.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,909.80 : 223,343.10 = 43,717.80 : x
  2. Step 2: Convert to fraction form
    148,909.80/223,343.10 = 43,717.80/x
  3. Step 3: Cross multiply
    148,909.80x = 223,343.10 × 43,717.80
  4. Step 4: Simplify right side
    148,909.80x = 9,764,068,977.18
  5. Step 5: Solve for x
    x = 9,764,068,977.18/148,909.80
  6. Step 6: Final answer
    x = 65,570.36

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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.