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Finding the Fourth Proportional to 330,157.39, 455,617.17 and 179,254.39

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Solution

The fourth proportional to 330,157.39, 455,617.17 and 179,254.39 is: 247,371.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,157.39 : 455,617.17 = 179,254.39 : x
  2. Step 2: Convert to fraction form
    330,157.39/455,617.17 = 179,254.39/x
  3. Step 3: Cross multiply
    330,157.39x = 455,617.17 × 179,254.39
  4. Step 4: Simplify right side
    330,157.39x = 81,671,377,881.88
  5. Step 5: Solve for x
    x = 81,671,377,881.88/330,157.39
  6. Step 6: Final answer
    x = 247,371.04

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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.