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Finding the Fourth Proportional to 89,919.32, 134,809.11 and 58,262.49

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Solution

The fourth proportional to 89,919.32, 134,809.11 and 58,262.49 is: 87,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,919.32 : 134,809.11 = 58,262.49 : x
  2. Step 2: Convert to fraction form
    89,919.32/134,809.11 = 58,262.49/x
  3. Step 3: Cross multiply
    89,919.32x = 134,809.11 × 58,262.49
  4. Step 4: Simplify right side
    89,919.32x = 7,854,314,423.28
  5. Step 5: Solve for x
    x = 7,854,314,423.28/89,919.32
  6. Step 6: Final answer
    x = 87,348.47

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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.