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Finding the Fourth Proportional to 203,366.86, 280,663.06 and 112,751.24

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Solution

The fourth proportional to 203,366.86, 280,663.06 and 112,751.24 is: 155,606.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,366.86 : 280,663.06 = 112,751.24 : x
  2. Step 2: Convert to fraction form
    203,366.86/280,663.06 = 112,751.24/x
  3. Step 3: Cross multiply
    203,366.86x = 280,663.06 × 112,751.24
  4. Step 4: Simplify right side
    203,366.86x = 31,645,108,037.19
  5. Step 5: Solve for x
    x = 31,645,108,037.19/203,366.86
  6. Step 6: Final answer
    x = 155,606.03

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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.