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Finding the Fourth Proportional to 97,884.80, 146,827.20 and 91,275.20

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Solution

The fourth proportional to 97,884.80, 146,827.20 and 91,275.20 is: 136,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,884.80 : 146,827.20 = 91,275.20 : x
  2. Step 2: Convert to fraction form
    97,884.80/146,827.20 = 91,275.20/x
  3. Step 3: Cross multiply
    97,884.80x = 146,827.20 × 91,275.20
  4. Step 4: Simplify right side
    97,884.80x = 13,401,682,045.44
  5. Step 5: Solve for x
    x = 13,401,682,045.44/97,884.80
  6. Step 6: Final answer
    x = 136,912.80

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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.