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Finding the Fourth Proportional to 88,044.60, 132,066.90 and 31,911.60

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Solution

The fourth proportional to 88,044.60, 132,066.90 and 31,911.60 is: 47,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,044.60 : 132,066.90 = 31,911.60 : x
  2. Step 2: Convert to fraction form
    88,044.60/132,066.90 = 31,911.60/x
  3. Step 3: Cross multiply
    88,044.60x = 132,066.90 × 31,911.60
  4. Step 4: Simplify right side
    88,044.60x = 4,214,466,086.04
  5. Step 5: Solve for x
    x = 4,214,466,086.04/88,044.60
  6. Step 6: Final answer
    x = 47,867.40

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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.