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Finding the Fourth Proportional to 324,202.32, 486,328.06 and 87,541.56

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Solution

The fourth proportional to 324,202.32, 486,328.06 and 87,541.56 is: 131,318.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,202.32 : 486,328.06 = 87,541.56 : x
  2. Step 2: Convert to fraction form
    324,202.32/486,328.06 = 87,541.56/x
  3. Step 3: Cross multiply
    324,202.32x = 486,328.06 × 87,541.56
  4. Step 4: Simplify right side
    324,202.32x = 42,573,917,044.17
  5. Step 5: Solve for x
    x = 42,573,917,044.17/324,202.32
  6. Step 6: Final answer
    x = 131,318.98

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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.