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Finding the Fourth Proportional to 100,389.92, 150,529.89 and 46,295.89

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Solution

The fourth proportional to 100,389.92, 150,529.89 and 46,295.89 is: 69,418.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,389.92 : 150,529.89 = 46,295.89 : x
  2. Step 2: Convert to fraction form
    100,389.92/150,529.89 = 46,295.89/x
  3. Step 3: Cross multiply
    100,389.92x = 150,529.89 × 46,295.89
  4. Step 4: Simplify right side
    100,389.92x = 6,968,914,476.50
  5. Step 5: Solve for x
    x = 6,968,914,476.50/100,389.92
  6. Step 6: Final answer
    x = 69,418.47

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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.