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Finding the Fourth Proportional to 183,900.72, 253,810.44 and 112,321.92

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Solution

The fourth proportional to 183,900.72, 253,810.44 and 112,321.92 is: 155,021.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,900.72 : 253,810.44 = 112,321.92 : x
  2. Step 2: Convert to fraction form
    183,900.72/253,810.44 = 112,321.92/x
  3. Step 3: Cross multiply
    183,900.72x = 253,810.44 × 112,321.92
  4. Step 4: Simplify right side
    183,900.72x = 28,508,475,936.84
  5. Step 5: Solve for x
    x = 28,508,475,936.84/183,900.72
  6. Step 6: Final answer
    x = 155,021.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.