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Finding the Fourth Proportional to 109,653.64, 151,325.69 and 67,203.97

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Solution

The fourth proportional to 109,653.64, 151,325.69 and 67,203.97 is: 92,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,653.64 : 151,325.69 = 67,203.97 : x
  2. Step 2: Convert to fraction form
    109,653.64/151,325.69 = 67,203.97/x
  3. Step 3: Cross multiply
    109,653.64x = 151,325.69 × 67,203.97
  4. Step 4: Simplify right side
    109,653.64x = 10,169,687,130.99
  5. Step 5: Solve for x
    x = 10,169,687,130.99/109,653.64
  6. Step 6: Final answer
    x = 92,743.73

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1.5x scale

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.