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Finding the Fourth Proportional to 99,314.88, 148,925.49 and 36,090.54

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Solution

The fourth proportional to 99,314.88, 148,925.49 and 36,090.54 is: 54,118.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,314.88 : 148,925.49 = 36,090.54 : x
  2. Step 2: Convert to fraction form
    99,314.88/148,925.49 = 36,090.54/x
  3. Step 3: Cross multiply
    99,314.88x = 148,925.49 × 36,090.54
  4. Step 4: Simplify right side
    99,314.88x = 5,374,800,609.24
  5. Step 5: Solve for x
    x = 5,374,800,609.24/99,314.88
  6. Step 6: Final answer
    x = 54,118.79

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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.