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Finding the Fourth Proportional to 73,164.88, 109,738.68 and 28,824.40

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Solution

The fourth proportional to 73,164.88, 109,738.68 and 28,824.40 is: 43,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,164.88 : 109,738.68 = 28,824.40 : x
  2. Step 2: Convert to fraction form
    73,164.88/109,738.68 = 28,824.40/x
  3. Step 3: Cross multiply
    73,164.88x = 109,738.68 × 28,824.40
  4. Step 4: Simplify right side
    73,164.88x = 3,163,151,607.79
  5. Step 5: Solve for x
    x = 3,163,151,607.79/73,164.88
  6. Step 6: Final answer
    x = 43,233.20

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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.