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Finding the Fourth Proportional to 99,388.52, 149,087.58 and 29,268.52

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Solution

The fourth proportional to 99,388.52, 149,087.58 and 29,268.52 is: 43,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,388.52 : 149,087.58 = 29,268.52 : x
  2. Step 2: Convert to fraction form
    99,388.52/149,087.58 = 29,268.52/x
  3. Step 3: Cross multiply
    99,388.52x = 149,087.58 × 29,268.52
  4. Step 4: Simplify right side
    99,388.52x = 4,363,572,816.98
  5. Step 5: Solve for x
    x = 4,363,572,816.98/99,388.52
  6. Step 6: Final answer
    x = 43,904.19

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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.