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Finding the Fourth Proportional to 153,339.39, 230,107.49 and 74,410.56

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Solution

The fourth proportional to 153,339.39, 230,107.49 and 74,410.56 is: 111,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,339.39 : 230,107.49 = 74,410.56 : x
  2. Step 2: Convert to fraction form
    153,339.39/230,107.49 = 74,410.56/x
  3. Step 3: Cross multiply
    153,339.39x = 230,107.49 × 74,410.56
  4. Step 4: Simplify right side
    153,339.39x = 17,122,426,819.04
  5. Step 5: Solve for x
    x = 17,122,426,819.04/153,339.39
  6. Step 6: Final answer
    x = 111,663.59

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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.