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Finding the Fourth Proportional to 216,295.76, 324,239.52 and 104,039.52

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Solution

The fourth proportional to 216,295.76, 324,239.52 and 104,039.52 is: 155,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,295.76 : 324,239.52 = 104,039.52 : x
  2. Step 2: Convert to fraction form
    216,295.76/324,239.52 = 104,039.52/x
  3. Step 3: Cross multiply
    216,295.76x = 324,239.52 × 104,039.52
  4. Step 4: Simplify right side
    216,295.76x = 33,733,724,025.83
  5. Step 5: Solve for x
    x = 33,733,724,025.83/216,295.76
  6. Step 6: Final answer
    x = 155,961.10

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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.