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Finding the Fourth Proportional to 116,770.48, 175,212.96 and 72,385.48

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Solution

The fourth proportional to 116,770.48, 175,212.96 and 72,385.48 is: 108,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,770.48 : 175,212.96 = 72,385.48 : x
  2. Step 2: Convert to fraction form
    116,770.48/175,212.96 = 72,385.48/x
  3. Step 3: Cross multiply
    116,770.48x = 175,212.96 × 72,385.48
  4. Step 4: Simplify right side
    116,770.48x = 12,682,874,211.82
  5. Step 5: Solve for x
    x = 12,682,874,211.82/116,770.48
  6. Step 6: Final answer
    x = 108,613.70

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1.5x scale

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.