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Finding the Fourth Proportional to 97,620.72, 134,715.69 and 54,599.69

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Solution

The fourth proportional to 97,620.72, 134,715.69 and 54,599.69 is: 75,347.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,620.72 : 134,715.69 = 54,599.69 : x
  2. Step 2: Convert to fraction form
    97,620.72/134,715.69 = 54,599.69/x
  3. Step 3: Cross multiply
    97,620.72x = 134,715.69 × 54,599.69
  4. Step 4: Simplify right side
    97,620.72x = 7,355,434,238.56
  5. Step 5: Solve for x
    x = 7,355,434,238.56/97,620.72
  6. Step 6: Final answer
    x = 75,347.06

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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.