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Finding the Fourth Proportional to 133,087.60, 199,728.60 and 93,721.60

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Solution

The fourth proportional to 133,087.60, 199,728.60 and 93,721.60 is: 140,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,087.60 : 199,728.60 = 93,721.60 : x
  2. Step 2: Convert to fraction form
    133,087.60/199,728.60 = 93,721.60/x
  3. Step 3: Cross multiply
    133,087.60x = 199,728.60 × 93,721.60
  4. Step 4: Simplify right side
    133,087.60x = 18,718,883,957.76
  5. Step 5: Solve for x
    x = 18,718,883,957.76/133,087.60
  6. Step 6: Final answer
    x = 140,650.85

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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.