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Finding the Fourth Proportional to 99,662.90, 149,468.84 and 29,525.81

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Solution

The fourth proportional to 99,662.90, 149,468.84 and 29,525.81 is: 44,281.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,662.90 : 149,468.84 = 29,525.81 : x
  2. Step 2: Convert to fraction form
    99,662.90/149,468.84 = 29,525.81/x
  3. Step 3: Cross multiply
    99,662.90x = 149,468.84 × 29,525.81
  4. Step 4: Simplify right side
    99,662.90x = 4,413,188,796.80
  5. Step 5: Solve for x
    x = 4,413,188,796.80/99,662.90
  6. Step 6: Final answer
    x = 44,281.16

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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.