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Finding the Fourth Proportional to 106,468.80, 159,832.80 and 53,851.20

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Solution

The fourth proportional to 106,468.80, 159,832.80 and 53,851.20 is: 80,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,468.80 : 159,832.80 = 53,851.20 : x
  2. Step 2: Convert to fraction form
    106,468.80/159,832.80 = 53,851.20/x
  3. Step 3: Cross multiply
    106,468.80x = 159,832.80 × 53,851.20
  4. Step 4: Simplify right side
    106,468.80x = 8,607,188,079.36
  5. Step 5: Solve for x
    x = 8,607,188,079.36/106,468.80
  6. Step 6: Final answer
    x = 80,842.35

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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.