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Finding the Fourth Proportional to 133,087.20, 199,630.80 and 59,215.20

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Solution

The fourth proportional to 133,087.20, 199,630.80 and 59,215.20 is: 88,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,087.20 : 199,630.80 = 59,215.20 : x
  2. Step 2: Convert to fraction form
    133,087.20/199,630.80 = 59,215.20/x
  3. Step 3: Cross multiply
    133,087.20x = 199,630.80 × 59,215.20
  4. Step 4: Simplify right side
    133,087.20x = 11,821,177,748.16
  5. Step 5: Solve for x
    x = 11,821,177,748.16/133,087.20
  6. Step 6: Final answer
    x = 88,822.80

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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.