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Finding the Fourth Proportional to 88,681.40, 133,022.10 and 26,351.90

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Solution

The fourth proportional to 88,681.40, 133,022.10 and 26,351.90 is: 39,527.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,681.40 : 133,022.10 = 26,351.90 : x
  2. Step 2: Convert to fraction form
    88,681.40/133,022.10 = 26,351.90/x
  3. Step 3: Cross multiply
    88,681.40x = 133,022.10 × 26,351.90
  4. Step 4: Simplify right side
    88,681.40x = 3,505,385,076.99
  5. Step 5: Solve for x
    x = 3,505,385,076.99/88,681.40
  6. Step 6: Final answer
    x = 39,527.85

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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.