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Finding the Fourth Proportional to 109,076.64, 150,523.02 and 61,329.93

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Solution

The fourth proportional to 109,076.64, 150,523.02 and 61,329.93 is: 84,633.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,076.64 : 150,523.02 = 61,329.93 : x
  2. Step 2: Convert to fraction form
    109,076.64/150,523.02 = 61,329.93/x
  3. Step 3: Cross multiply
    109,076.64x = 150,523.02 × 61,329.93
  4. Step 4: Simplify right side
    109,076.64x = 9,231,566,279.99
  5. Step 5: Solve for x
    x = 9,231,566,279.99/109,076.64
  6. Step 6: Final answer
    x = 84,633.76

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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.