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Finding the Fourth Proportional to 89,756.90, 134,635.35 and 26,579.30

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Solution

The fourth proportional to 89,756.90, 134,635.35 and 26,579.30 is: 39,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,756.90 : 134,635.35 = 26,579.30 : x
  2. Step 2: Convert to fraction form
    89,756.90/134,635.35 = 26,579.30/x
  3. Step 3: Cross multiply
    89,756.90x = 134,635.35 × 26,579.30
  4. Step 4: Simplify right side
    89,756.90x = 3,578,513,358.26
  5. Step 5: Solve for x
    x = 3,578,513,358.26/89,756.90
  6. Step 6: Final answer
    x = 39,868.95

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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.