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Finding the Fourth Proportional to 156,637.92, 234,978.48 and 51,467.52

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Solution

The fourth proportional to 156,637.92, 234,978.48 and 51,467.52 is: 77,208.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,637.92 : 234,978.48 = 51,467.52 : x
  2. Step 2: Convert to fraction form
    156,637.92/234,978.48 = 51,467.52/x
  3. Step 3: Cross multiply
    156,637.92x = 234,978.48 × 51,467.52
  4. Step 4: Simplify right side
    156,637.92x = 12,093,759,618.97
  5. Step 5: Solve for x
    x = 12,093,759,618.97/156,637.92
  6. Step 6: Final answer
    x = 77,208.38

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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.