Home / 193,005.42-289,546.80-66,650.28

Finding the Fourth Proportional to 193,005.42, 289,546.80 and 66,650.28

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Solution

The fourth proportional to 193,005.42, 289,546.80 and 66,650.28 is: 99,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,005.42 : 289,546.80 = 66,650.28 : x
  2. Step 2: Convert to fraction form
    193,005.42/289,546.80 = 66,650.28/x
  3. Step 3: Cross multiply
    193,005.42x = 289,546.80 × 66,650.28
  4. Step 4: Simplify right side
    193,005.42x = 19,298,375,293.10
  5. Step 5: Solve for x
    x = 19,298,375,293.10/193,005.42
  6. Step 6: Final answer
    x = 99,988.77

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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.