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Finding the Fourth Proportional to 100,943.51, 151,416.42 and 43,232.94

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Solution

The fourth proportional to 100,943.51, 151,416.42 and 43,232.94 is: 64,849.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,943.51 : 151,416.42 = 43,232.94 : x
  2. Step 2: Convert to fraction form
    100,943.51/151,416.42 = 43,232.94/x
  3. Step 3: Cross multiply
    100,943.51x = 151,416.42 × 43,232.94
  4. Step 4: Simplify right side
    100,943.51x = 6,546,177,000.87
  5. Step 5: Solve for x
    x = 6,546,177,000.87/100,943.51
  6. Step 6: Final answer
    x = 64,849.91

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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.