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Finding the Fourth Proportional to 111,087.75, 153,301.10 and 60,786.75

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Solution

The fourth proportional to 111,087.75, 153,301.10 and 60,786.75 is: 83,885.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,087.75 : 153,301.10 = 60,786.75 : x
  2. Step 2: Convert to fraction form
    111,087.75/153,301.10 = 60,786.75/x
  3. Step 3: Cross multiply
    111,087.75x = 153,301.10 × 60,786.75
  4. Step 4: Simplify right side
    111,087.75x = 9,318,675,336.49
  5. Step 5: Solve for x
    x = 9,318,675,336.49/111,087.75
  6. Step 6: Final answer
    x = 83,885.72

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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.