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Finding the Fourth Proportional to 325,064.99, 487,644.12 and 100,445.04

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Solution

The fourth proportional to 325,064.99, 487,644.12 and 100,445.04 is: 150,681.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,064.99 : 487,644.12 = 100,445.04 : x
  2. Step 2: Convert to fraction form
    325,064.99/487,644.12 = 100,445.04/x
  3. Step 3: Cross multiply
    325,064.99x = 487,644.12 × 100,445.04
  4. Step 4: Simplify right side
    325,064.99x = 48,981,433,139.16
  5. Step 5: Solve for x
    x = 48,981,433,139.16/325,064.99
  6. Step 6: Final answer
    x = 150,681.97

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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.