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Finding the Fourth Proportional to 363,558.69, 545,587.16 and 126,901.35

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Solution

The fourth proportional to 363,558.69, 545,587.16 and 126,901.35 is: 190,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,558.69 : 545,587.16 = 126,901.35 : x
  2. Step 2: Convert to fraction form
    363,558.69/545,587.16 = 126,901.35/x
  3. Step 3: Cross multiply
    363,558.69x = 545,587.16 × 126,901.35
  4. Step 4: Simplify right side
    363,558.69x = 69,235,746,512.16
  5. Step 5: Solve for x
    x = 69,235,746,512.16/363,558.69
  6. Step 6: Final answer
    x = 190,438.98

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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.