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Finding the Fourth Proportional to 324,783, 487,116.99 and 88,144.08

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Solution

The fourth proportional to 324,783, 487,116.99 and 88,144.08 is: 132,200.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,783 : 487,116.99 = 88,144.08 : x
  2. Step 2: Convert to fraction form
    324,783/487,116.99 = 88,144.08/x
  3. Step 3: Cross multiply
    324,783x = 487,116.99 × 88,144.08
  4. Step 4: Simplify right side
    324,783x = 42,936,478,935.92
  5. Step 5: Solve for x
    x = 42,936,478,935.92/324,783
  6. Step 6: Final answer
    x = 132,200.51

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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.