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Finding the Fourth Proportional to 89,801.39, 134,715.93 and 30,623.22

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Solution

The fourth proportional to 89,801.39, 134,715.93 and 30,623.22 is: 45,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,801.39 : 134,715.93 = 30,623.22 : x
  2. Step 2: Convert to fraction form
    89,801.39/134,715.93 = 30,623.22/x
  3. Step 3: Cross multiply
    89,801.39x = 134,715.93 × 30,623.22
  4. Step 4: Simplify right side
    89,801.39x = 4,125,435,800.16
  5. Step 5: Solve for x
    x = 4,125,435,800.16/89,801.39
  6. Step 6: Final answer
    x = 45,939.55

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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.