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Finding the Fourth Proportional to 111,953.93, 154,489.38 and 61,652.93

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Solution

The fourth proportional to 111,953.93, 154,489.38 and 61,652.93 is: 85,077.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,953.93 : 154,489.38 = 61,652.93 : x
  2. Step 2: Convert to fraction form
    111,953.93/154,489.38 = 61,652.93/x
  3. Step 3: Cross multiply
    111,953.93x = 154,489.38 × 61,652.93
  4. Step 4: Simplify right side
    111,953.93x = 9,524,722,930.88
  5. Step 5: Solve for x
    x = 9,524,722,930.88/111,953.93
  6. Step 6: Final answer
    x = 85,077.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.