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Finding the Fourth Proportional to 137,673.45, 206,510.19 and 48,930.46

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Solution

The fourth proportional to 137,673.45, 206,510.19 and 48,930.46 is: 73,395.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,673.45 : 206,510.19 = 48,930.46 : x
  2. Step 2: Convert to fraction form
    137,673.45/206,510.19 = 48,930.46/x
  3. Step 3: Cross multiply
    137,673.45x = 206,510.19 × 48,930.46
  4. Step 4: Simplify right side
    137,673.45x = 10,104,638,075.11
  5. Step 5: Solve for x
    x = 10,104,638,075.11/137,673.45
  6. Step 6: Final answer
    x = 73,395.69

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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.