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Finding the Fourth Proportional to 89,294.98, 133,942.50 and 69,588.28

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Solution

The fourth proportional to 89,294.98, 133,942.50 and 69,588.28 is: 104,382.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,294.98 : 133,942.50 = 69,588.28 : x
  2. Step 2: Convert to fraction form
    89,294.98/133,942.50 = 69,588.28/x
  3. Step 3: Cross multiply
    89,294.98x = 133,942.50 × 69,588.28
  4. Step 4: Simplify right side
    89,294.98x = 9,320,828,193.90
  5. Step 5: Solve for x
    x = 9,320,828,193.90/89,294.98
  6. Step 6: Final answer
    x = 104,382.44

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1.5x scale

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.