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Finding the Fourth Proportional to 132,513.60, 198,717.60 and 43,742.40

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Solution

The fourth proportional to 132,513.60, 198,717.60 and 43,742.40 is: 65,596.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,513.60 : 198,717.60 = 43,742.40 : x
  2. Step 2: Convert to fraction form
    132,513.60/198,717.60 = 43,742.40/x
  3. Step 3: Cross multiply
    132,513.60x = 198,717.60 × 43,742.40
  4. Step 4: Simplify right side
    132,513.60x = 8,692,384,746.24
  5. Step 5: Solve for x
    x = 8,692,384,746.24/132,513.60
  6. Step 6: Final answer
    x = 65,596.17

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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.