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Finding the Fourth Proportional to 236,255.90, 353,800.65 and 156,940.70

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Solution

The fourth proportional to 236,255.90, 353,800.65 and 156,940.70 is: 235,023.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,255.90 : 353,800.65 = 156,940.70 : x
  2. Step 2: Convert to fraction form
    236,255.90/353,800.65 = 156,940.70/x
  3. Step 3: Cross multiply
    236,255.90x = 353,800.65 × 156,940.70
  4. Step 4: Simplify right side
    236,255.90x = 55,525,721,671.46
  5. Step 5: Solve for x
    x = 55,525,721,671.46/236,255.90
  6. Step 6: Final answer
    x = 235,023.64

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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.