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Finding the Fourth Proportional to 89,068.80, 133,603.20 and 29,884.80

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Solution

The fourth proportional to 89,068.80, 133,603.20 and 29,884.80 is: 44,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,068.80 : 133,603.20 = 29,884.80 : x
  2. Step 2: Convert to fraction form
    89,068.80/133,603.20 = 29,884.80/x
  3. Step 3: Cross multiply
    89,068.80x = 133,603.20 × 29,884.80
  4. Step 4: Simplify right side
    89,068.80x = 3,992,704,911.36
  5. Step 5: Solve for x
    x = 3,992,704,911.36/89,068.80
  6. Step 6: Final answer
    x = 44,827.20

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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.