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Finding the Fourth Proportional to 89,447.67, 134,187.71 and 36,828.45

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Solution

The fourth proportional to 89,447.67, 134,187.71 and 36,828.45 is: 55,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,447.67 : 134,187.71 = 36,828.45 : x
  2. Step 2: Convert to fraction form
    89,447.67/134,187.71 = 36,828.45/x
  3. Step 3: Cross multiply
    89,447.67x = 134,187.71 × 36,828.45
  4. Step 4: Simplify right side
    89,447.67x = 4,941,925,368.35
  5. Step 5: Solve for x
    x = 4,941,925,368.35/89,447.67
  6. Step 6: Final answer
    x = 55,249.35

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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.