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Finding the Fourth Proportional to 89,889.60, 134,792.48 and 26,686.51

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Solution

The fourth proportional to 89,889.60, 134,792.48 and 26,686.51 is: 40,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,889.60 : 134,792.48 = 26,686.51 : x
  2. Step 2: Convert to fraction form
    89,889.60/134,792.48 = 26,686.51/x
  3. Step 3: Cross multiply
    89,889.60x = 134,792.48 × 26,686.51
  4. Step 4: Simplify right side
    89,889.60x = 3,597,140,732.01
  5. Step 5: Solve for x
    x = 3,597,140,732.01/89,889.60
  6. Step 6: Final answer
    x = 40,017.32

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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.