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Finding the Fourth Proportional to 89,900.88, 124,037.64 and 54,072.96

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Solution

The fourth proportional to 89,900.88, 124,037.64 and 54,072.96 is: 74,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,900.88 : 124,037.64 = 54,072.96 : x
  2. Step 2: Convert to fraction form
    89,900.88/124,037.64 = 54,072.96/x
  3. Step 3: Cross multiply
    89,900.88x = 124,037.64 × 54,072.96
  4. Step 4: Simplify right side
    89,900.88x = 6,707,082,346.21
  5. Step 5: Solve for x
    x = 6,707,082,346.21/89,900.88
  6. Step 6: Final answer
    x = 74,605.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.