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Finding the Fourth Proportional to 73,148.84, 100,945.02 and 39,614.84

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Solution

The fourth proportional to 73,148.84, 100,945.02 and 39,614.84 is: 54,668.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,148.84 : 100,945.02 = 39,614.84 : x
  2. Step 2: Convert to fraction form
    73,148.84/100,945.02 = 39,614.84/x
  3. Step 3: Cross multiply
    73,148.84x = 100,945.02 × 39,614.84
  4. Step 4: Simplify right side
    73,148.84x = 3,998,920,816.10
  5. Step 5: Solve for x
    x = 3,998,920,816.10/73,148.84
  6. Step 6: Final answer
    x = 54,668.27

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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.