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Finding the Fourth Proportional to 88,815.90, 133,051.05 and 53,651.10

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Solution

The fourth proportional to 88,815.90, 133,051.05 and 53,651.10 is: 80,372.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,815.90 : 133,051.05 = 53,651.10 : x
  2. Step 2: Convert to fraction form
    88,815.90/133,051.05 = 53,651.10/x
  3. Step 3: Cross multiply
    88,815.90x = 133,051.05 × 53,651.10
  4. Step 4: Simplify right side
    88,815.90x = 7,138,335,188.66
  5. Step 5: Solve for x
    x = 7,138,335,188.66/88,815.90
  6. Step 6: Final answer
    x = 80,372.27

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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.