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Finding the Fourth Proportional to 325,060.68, 487,637.66 and 100,440.72

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Solution

The fourth proportional to 325,060.68, 487,637.66 and 100,440.72 is: 150,675.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,060.68 : 487,637.66 = 100,440.72 : x
  2. Step 2: Convert to fraction form
    325,060.68/487,637.66 = 100,440.72/x
  3. Step 3: Cross multiply
    325,060.68x = 487,637.66 × 100,440.72
  4. Step 4: Simplify right side
    325,060.68x = 48,978,677,167.31
  5. Step 5: Solve for x
    x = 48,978,677,167.31/325,060.68
  6. Step 6: Final answer
    x = 150,675.49

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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.