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Finding the Fourth Proportional to 324,703.12, 487,118.49 and 100,025.32

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Solution

The fourth proportional to 324,703.12, 487,118.49 and 100,025.32 is: 150,057.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,703.12 : 487,118.49 = 100,025.32 : x
  2. Step 2: Convert to fraction form
    324,703.12/487,118.49 = 100,025.32/x
  3. Step 3: Cross multiply
    324,703.12x = 487,118.49 × 100,025.32
  4. Step 4: Simplify right side
    324,703.12x = 48,724,182,840.17
  5. Step 5: Solve for x
    x = 48,724,182,840.17/324,703.12
  6. Step 6: Final answer
    x = 150,057.64

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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.