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Finding the Fourth Proportional to 363,617.10, 545,424.96 and 163,703.88

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Solution

The fourth proportional to 363,617.10, 545,424.96 and 163,703.88 is: 245,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,617.10 : 545,424.96 = 163,703.88 : x
  2. Step 2: Convert to fraction form
    363,617.10/545,424.96 = 163,703.88/x
  3. Step 3: Cross multiply
    363,617.10x = 545,424.96 × 163,703.88
  4. Step 4: Simplify right side
    363,617.10x = 89,288,182,200.84
  5. Step 5: Solve for x
    x = 89,288,182,200.84/363,617.10
  6. Step 6: Final answer
    x = 245,555.51

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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.