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Finding the Fourth Proportional to 104,743.92, 144,715.92 and 73,054.32

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Solution

The fourth proportional to 104,743.92, 144,715.92 and 73,054.32 is: 100,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,743.92 : 144,715.92 = 73,054.32 : x
  2. Step 2: Convert to fraction form
    104,743.92/144,715.92 = 73,054.32/x
  3. Step 3: Cross multiply
    104,743.92x = 144,715.92 × 73,054.32
  4. Step 4: Simplify right side
    104,743.92x = 10,572,123,128.77
  5. Step 5: Solve for x
    x = 10,572,123,128.77/104,743.92
  6. Step 6: Final answer
    x = 100,933.05

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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.