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Finding the Fourth Proportional to 325,113.72, 487,596.75 and 156,548.07

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Solution

The fourth proportional to 325,113.72, 487,596.75 and 156,548.07 is: 234,786.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,113.72 : 487,596.75 = 156,548.07 : x
  2. Step 2: Convert to fraction form
    325,113.72/487,596.75 = 156,548.07/x
  3. Step 3: Cross multiply
    325,113.72x = 487,596.75 × 156,548.07
  4. Step 4: Simplify right side
    325,113.72x = 76,332,330,150.77
  5. Step 5: Solve for x
    x = 76,332,330,150.77/325,113.72
  6. Step 6: Final answer
    x = 234,786.55

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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.