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Finding the Fourth Proportional to 88,859.05, 133,180.80 and 65,266.72

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Solution

The fourth proportional to 88,859.05, 133,180.80 and 65,266.72 is: 97,820.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,859.05 : 133,180.80 = 65,266.72 : x
  2. Step 2: Convert to fraction form
    88,859.05/133,180.80 = 65,266.72/x
  3. Step 3: Cross multiply
    88,859.05x = 133,180.80 × 65,266.72
  4. Step 4: Simplify right side
    88,859.05x = 8,692,273,982.98
  5. Step 5: Solve for x
    x = 8,692,273,982.98/88,859.05
  6. Step 6: Final answer
    x = 97,820.92

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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.