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Finding the Fourth Proportional to 132,088.50, 198,161.91 and 48,982.50

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Solution

The fourth proportional to 132,088.50, 198,161.91 and 48,982.50 is: 73,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,088.50 : 198,161.91 = 48,982.50 : x
  2. Step 2: Convert to fraction form
    132,088.50/198,161.91 = 48,982.50/x
  3. Step 3: Cross multiply
    132,088.50x = 198,161.91 × 48,982.50
  4. Step 4: Simplify right side
    132,088.50x = 9,706,465,756.58
  5. Step 5: Solve for x
    x = 9,706,465,756.58/132,088.50
  6. Step 6: Final answer
    x = 73,484.56

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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.