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Finding the Fourth Proportional to 75,665.39, 113,499.00 and 25,746.51

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Solution

The fourth proportional to 75,665.39, 113,499.00 and 25,746.51 is: 38,620.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,665.39 : 113,499.00 = 25,746.51 : x
  2. Step 2: Convert to fraction form
    75,665.39/113,499.00 = 25,746.51/x
  3. Step 3: Cross multiply
    75,665.39x = 113,499.00 × 25,746.51
  4. Step 4: Simplify right side
    75,665.39x = 2,922,203,009.76
  5. Step 5: Solve for x
    x = 2,922,203,009.76/75,665.39
  6. Step 6: Final answer
    x = 38,620.07

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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.