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Finding the Fourth Proportional to 157,656.70, 236,485.05 and 122,227.30

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Solution

The fourth proportional to 157,656.70, 236,485.05 and 122,227.30 is: 183,340.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,656.70 : 236,485.05 = 122,227.30 : x
  2. Step 2: Convert to fraction form
    157,656.70/236,485.05 = 122,227.30/x
  3. Step 3: Cross multiply
    157,656.70x = 236,485.05 × 122,227.30
  4. Step 4: Simplify right side
    157,656.70x = 28,904,929,151.87
  5. Step 5: Solve for x
    x = 28,904,929,151.87/157,656.70
  6. Step 6: Final answer
    x = 183,340.95

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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.