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Finding the Fourth Proportional to 87,526.72, 131,290.08 and 69,914.08

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Solution

The fourth proportional to 87,526.72, 131,290.08 and 69,914.08 is: 104,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,526.72 : 131,290.08 = 69,914.08 : x
  2. Step 2: Convert to fraction form
    87,526.72/131,290.08 = 69,914.08/x
  3. Step 3: Cross multiply
    87,526.72x = 131,290.08 × 69,914.08
  4. Step 4: Simplify right side
    87,526.72x = 9,179,025,156.33
  5. Step 5: Solve for x
    x = 9,179,025,156.33/87,526.72
  6. Step 6: Final answer
    x = 104,871.12

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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.