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Finding the Fourth Proportional to 236,909.80, 355,235.10 and 96,509.80

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Solution

The fourth proportional to 236,909.80, 355,235.10 and 96,509.80 is: 144,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,909.80 : 355,235.10 = 96,509.80 : x
  2. Step 2: Convert to fraction form
    236,909.80/355,235.10 = 96,509.80/x
  3. Step 3: Cross multiply
    236,909.80x = 355,235.10 × 96,509.80
  4. Step 4: Simplify right side
    236,909.80x = 34,283,668,453.98
  5. Step 5: Solve for x
    x = 34,283,668,453.98/236,909.80
  6. Step 6: Final answer
    x = 144,711.90

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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.