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Finding the Fourth Proportional to 89,879.51, 134,800.13 and 26,682.50

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Solution

The fourth proportional to 89,879.51, 134,800.13 and 26,682.50 is: 40,018.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,879.51 : 134,800.13 = 26,682.50 : x
  2. Step 2: Convert to fraction form
    89,879.51/134,800.13 = 26,682.50/x
  3. Step 3: Cross multiply
    89,879.51x = 134,800.13 × 26,682.50
  4. Step 4: Simplify right side
    89,879.51x = 3,596,804,335.31
  5. Step 5: Solve for x
    x = 3,596,804,335.31/89,879.51
  6. Step 6: Final answer
    x = 40,018.07

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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.