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Finding the Fourth Proportional to 273,166.80, 409,750.20 and 155,068.80

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Solution

The fourth proportional to 273,166.80, 409,750.20 and 155,068.80 is: 232,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,166.80 : 409,750.20 = 155,068.80 : x
  2. Step 2: Convert to fraction form
    273,166.80/409,750.20 = 155,068.80/x
  3. Step 3: Cross multiply
    273,166.80x = 409,750.20 × 155,068.80
  4. Step 4: Simplify right side
    273,166.80x = 63,539,471,813.76
  5. Step 5: Solve for x
    x = 63,539,471,813.76/273,166.80
  6. Step 6: Final answer
    x = 232,603.20

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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.