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Finding the Fourth Proportional to 310,180.80, 465,352.20 and 99,823.80

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Solution

The fourth proportional to 310,180.80, 465,352.20 and 99,823.80 is: 149,761.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,180.80 : 465,352.20 = 99,823.80 : x
  2. Step 2: Convert to fraction form
    310,180.80/465,352.20 = 99,823.80/x
  3. Step 3: Cross multiply
    310,180.80x = 465,352.20 × 99,823.80
  4. Step 4: Simplify right side
    310,180.80x = 46,453,224,942.36
  5. Step 5: Solve for x
    x = 46,453,224,942.36/310,180.80
  6. Step 6: Final answer
    x = 149,761.77

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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.