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Finding the Fourth Proportional to 89,704.49, 134,429.87 and 49,741.07

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Solution

The fourth proportional to 89,704.49, 134,429.87 and 49,741.07 is: 74,541.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,704.49 : 134,429.87 = 49,741.07 : x
  2. Step 2: Convert to fraction form
    89,704.49/134,429.87 = 49,741.07/x
  3. Step 3: Cross multiply
    89,704.49x = 134,429.87 × 49,741.07
  4. Step 4: Simplify right side
    89,704.49x = 6,686,685,661.13
  5. Step 5: Solve for x
    x = 6,686,685,661.13/89,704.49
  6. Step 6: Final answer
    x = 74,541.26

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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.