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Finding the Fourth Proportional to 93,486.26, 140,353.91 and 79,535.93

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Solution

The fourth proportional to 93,486.26, 140,353.91 and 79,535.93 is: 119,409.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,486.26 : 140,353.91 = 79,535.93 : x
  2. Step 2: Convert to fraction form
    93,486.26/140,353.91 = 79,535.93/x
  3. Step 3: Cross multiply
    93,486.26x = 140,353.91 × 79,535.93
  4. Step 4: Simplify right side
    93,486.26x = 11,163,177,661.54
  5. Step 5: Solve for x
    x = 11,163,177,661.54/93,486.26
  6. Step 6: Final answer
    x = 119,409.83

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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.