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Finding the Fourth Proportional to 99,056, 148,622.72 and 43,613.12

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Solution

The fourth proportional to 99,056, 148,622.72 and 43,613.12 is: 65,436.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,056 : 148,622.72 = 43,613.12 : x
  2. Step 2: Convert to fraction form
    99,056/148,622.72 = 43,613.12/x
  3. Step 3: Cross multiply
    99,056x = 148,622.72 × 43,613.12
  4. Step 4: Simplify right side
    99,056x = 6,481,900,522.09
  5. Step 5: Solve for x
    x = 6,481,900,522.09/99,056
  6. Step 6: Final answer
    x = 65,436.73

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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.