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Finding the Fourth Proportional to 329,725.60, 494,579.13 and 105,099.51

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Solution

The fourth proportional to 329,725.60, 494,579.13 and 105,099.51 is: 157,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,725.60 : 494,579.13 = 105,099.51 : x
  2. Step 2: Convert to fraction form
    329,725.60/494,579.13 = 105,099.51/x
  3. Step 3: Cross multiply
    329,725.60x = 494,579.13 × 105,099.51
  4. Step 4: Simplify right side
    329,725.60x = 51,980,024,219.23
  5. Step 5: Solve for x
    x = 51,980,024,219.23/329,725.60
  6. Step 6: Final answer
    x = 157,646.31

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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.