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Finding the Fourth Proportional to 157,224.60, 235,620.90 and 100,891.80

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Solution

The fourth proportional to 157,224.60, 235,620.90 and 100,891.80 is: 151,199.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,224.60 : 235,620.90 = 100,891.80 : x
  2. Step 2: Convert to fraction form
    157,224.60/235,620.90 = 100,891.80/x
  3. Step 3: Cross multiply
    157,224.60x = 235,620.90 × 100,891.80
  4. Step 4: Simplify right side
    157,224.60x = 23,772,216,718.62
  5. Step 5: Solve for x
    x = 23,772,216,718.62/157,224.60
  6. Step 6: Final answer
    x = 151,199.09

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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.