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Finding the Fourth Proportional to 128,951.34, 177,584.91 and 93,084.54

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Solution

The fourth proportional to 128,951.34, 177,584.91 and 93,084.54 is: 128,191.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,951.34 : 177,584.91 = 93,084.54 : x
  2. Step 2: Convert to fraction form
    128,951.34/177,584.91 = 93,084.54/x
  3. Step 3: Cross multiply
    128,951.34x = 177,584.91 × 93,084.54
  4. Step 4: Simplify right side
    128,951.34x = 16,530,409,642.20
  5. Step 5: Solve for x
    x = 16,530,409,642.20/128,951.34
  6. Step 6: Final answer
    x = 128,191.06

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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.