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Finding the Fourth Proportional to 73,443.70, 109,946.85 and 43,846.30

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Solution

The fourth proportional to 73,443.70, 109,946.85 and 43,846.30 is: 65,638.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,443.70 : 109,946.85 = 43,846.30 : x
  2. Step 2: Convert to fraction form
    73,443.70/109,946.85 = 43,846.30/x
  3. Step 3: Cross multiply
    73,443.70x = 109,946.85 × 43,846.30
  4. Step 4: Simplify right side
    73,443.70x = 4,820,762,569.16
  5. Step 5: Solve for x
    x = 4,820,762,569.16/73,443.70
  6. Step 6: Final answer
    x = 65,638.88

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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.