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Finding the Fourth Proportional to 236,353.73, 326,156.15 and 128,922.89

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Solution

The fourth proportional to 236,353.73, 326,156.15 and 128,922.89 is: 177,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,353.73 : 326,156.15 = 128,922.89 : x
  2. Step 2: Convert to fraction form
    236,353.73/326,156.15 = 128,922.89/x
  3. Step 3: Cross multiply
    236,353.73x = 326,156.15 × 128,922.89
  4. Step 4: Simplify right side
    236,353.73x = 42,048,992,140.80
  5. Step 5: Solve for x
    x = 42,048,992,140.80/236,353.73
  6. Step 6: Final answer
    x = 177,907.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.