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Finding the Fourth Proportional to 89,365.88, 134,007.93 and 53,358.67

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Solution

The fourth proportional to 89,365.88, 134,007.93 and 53,358.67 is: 80,013.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,365.88 : 134,007.93 = 53,358.67 : x
  2. Step 2: Convert to fraction form
    89,365.88/134,007.93 = 53,358.67/x
  3. Step 3: Cross multiply
    89,365.88x = 134,007.93 × 53,358.67
  4. Step 4: Simplify right side
    89,365.88x = 7,150,484,914.25
  5. Step 5: Solve for x
    x = 7,150,484,914.25/89,365.88
  6. Step 6: Final answer
    x = 80,013.59

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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.