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Finding the Fourth Proportional to 363,650.80, 545,087.40 and 163,937.20

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Solution

The fourth proportional to 363,650.80, 545,087.40 and 163,937.20 is: 245,730.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,650.80 : 545,087.40 = 163,937.20 : x
  2. Step 2: Convert to fraction form
    363,650.80/545,087.40 = 163,937.20/x
  3. Step 3: Cross multiply
    363,650.80x = 545,087.40 × 163,937.20
  4. Step 4: Simplify right side
    363,650.80x = 89,360,102,111.28
  5. Step 5: Solve for x
    x = 89,360,102,111.28/363,650.80
  6. Step 6: Final answer
    x = 245,730.53

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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.