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Finding the Fourth Proportional to 144,531.69, 216,649.29 and 55,750.29

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Solution

The fourth proportional to 144,531.69, 216,649.29 and 55,750.29 is: 83,568.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,531.69 : 216,649.29 = 55,750.29 : x
  2. Step 2: Convert to fraction form
    144,531.69/216,649.29 = 55,750.29/x
  3. Step 3: Cross multiply
    144,531.69x = 216,649.29 × 55,750.29
  4. Step 4: Simplify right side
    144,531.69x = 12,078,260,745.79
  5. Step 5: Solve for x
    x = 12,078,260,745.79/144,531.69
  6. Step 6: Final answer
    x = 83,568.25

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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.