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Finding the Fourth Proportional to 123,423.16, 185,134.76 and 29,928.88

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Solution

The fourth proportional to 123,423.16, 185,134.76 and 29,928.88 is: 44,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,423.16 : 185,134.76 = 29,928.88 : x
  2. Step 2: Convert to fraction form
    123,423.16/185,134.76 = 29,928.88/x
  3. Step 3: Cross multiply
    123,423.16x = 185,134.76 × 29,928.88
  4. Step 4: Simplify right side
    123,423.16x = 5,540,876,015.87
  5. Step 5: Solve for x
    x = 5,540,876,015.87/123,423.16
  6. Step 6: Final answer
    x = 44,893.32

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1.5x scale

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.