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Finding the Fourth Proportional to 89,309.79, 133,870.22 and 29,322.51

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Solution

The fourth proportional to 89,309.79, 133,870.22 and 29,322.51 is: 43,952.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,309.79 : 133,870.22 = 29,322.51 : x
  2. Step 2: Convert to fraction form
    89,309.79/133,870.22 = 29,322.51/x
  3. Step 3: Cross multiply
    89,309.79x = 133,870.22 × 29,322.51
  4. Step 4: Simplify right side
    89,309.79x = 3,925,410,325.99
  5. Step 5: Solve for x
    x = 3,925,410,325.99/89,309.79
  6. Step 6: Final answer
    x = 43,952.74

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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.