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Finding the Fourth Proportional to 144,576.20, 216,810.43 and 49,779.87

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Solution

The fourth proportional to 144,576.20, 216,810.43 and 49,779.87 is: 74,651.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,576.20 : 216,810.43 = 49,779.87 : x
  2. Step 2: Convert to fraction form
    144,576.20/216,810.43 = 49,779.87/x
  3. Step 3: Cross multiply
    144,576.20x = 216,810.43 × 49,779.87
  4. Step 4: Simplify right side
    144,576.20x = 10,792,794,895.59
  5. Step 5: Solve for x
    x = 10,792,794,895.59/144,576.20
  6. Step 6: Final answer
    x = 74,651.26

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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.