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Finding the Fourth Proportional to 88,289.60, 132,434.40 and 70,793.60

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Solution

The fourth proportional to 88,289.60, 132,434.40 and 70,793.60 is: 106,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,289.60 : 132,434.40 = 70,793.60 : x
  2. Step 2: Convert to fraction form
    88,289.60/132,434.40 = 70,793.60/x
  3. Step 3: Cross multiply
    88,289.60x = 132,434.40 × 70,793.60
  4. Step 4: Simplify right side
    88,289.60x = 9,375,507,939.84
  5. Step 5: Solve for x
    x = 9,375,507,939.84/88,289.60
  6. Step 6: Final answer
    x = 106,190.40

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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.