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Finding the Fourth Proportional to 73,000.14, 100,739.90 and 39,466.14

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Solution

The fourth proportional to 73,000.14, 100,739.90 and 39,466.14 is: 54,463.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,000.14 : 100,739.90 = 39,466.14 : x
  2. Step 2: Convert to fraction form
    73,000.14/100,739.90 = 39,466.14/x
  3. Step 3: Cross multiply
    73,000.14x = 100,739.90 × 39,466.14
  4. Step 4: Simplify right side
    73,000.14x = 3,975,814,717.88
  5. Step 5: Solve for x
    x = 3,975,814,717.88/73,000.14
  6. Step 6: Final answer
    x = 54,463.11

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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.