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Finding the Fourth Proportional to 88,054.40, 132,081.60 and 67,059.20

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Solution

The fourth proportional to 88,054.40, 132,081.60 and 67,059.20 is: 100,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,054.40 : 132,081.60 = 67,059.20 : x
  2. Step 2: Convert to fraction form
    88,054.40/132,081.60 = 67,059.20/x
  3. Step 3: Cross multiply
    88,054.40x = 132,081.60 × 67,059.20
  4. Step 4: Simplify right side
    88,054.40x = 8,857,286,430.72
  5. Step 5: Solve for x
    x = 8,857,286,430.72/88,054.40
  6. Step 6: Final answer
    x = 100,588.80

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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.