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Finding the Fourth Proportional to 99,036, 148,560.48 and 43,632

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Solution

The fourth proportional to 99,036, 148,560.48 and 43,632 is: 65,450.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,036 : 148,560.48 = 43,632 : x
  2. Step 2: Convert to fraction form
    99,036/148,560.48 = 43,632/x
  3. Step 3: Cross multiply
    99,036x = 148,560.48 × 43,632
  4. Step 4: Simplify right side
    99,036x = 6,481,990,863.36
  5. Step 5: Solve for x
    x = 6,481,990,863.36/99,036
  6. Step 6: Final answer
    x = 65,450.85

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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.