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Finding the Fourth Proportional to 273,341.80, 410,012.70 and 155,243.80

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Solution

The fourth proportional to 273,341.80, 410,012.70 and 155,243.80 is: 232,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,341.80 : 410,012.70 = 155,243.80 : x
  2. Step 2: Convert to fraction form
    273,341.80/410,012.70 = 155,243.80/x
  3. Step 3: Cross multiply
    273,341.80x = 410,012.70 × 155,243.80
  4. Step 4: Simplify right side
    273,341.80x = 63,651,929,596.26
  5. Step 5: Solve for x
    x = 63,651,929,596.26/273,341.80
  6. Step 6: Final answer
    x = 232,865.70

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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.