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Finding the Fourth Proportional to 273,133.80, 409,700.70 and 161,159.40

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Solution

The fourth proportional to 273,133.80, 409,700.70 and 161,159.40 is: 241,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,133.80 : 409,700.70 = 161,159.40 : x
  2. Step 2: Convert to fraction form
    273,133.80/409,700.70 = 161,159.40/x
  3. Step 3: Cross multiply
    273,133.80x = 409,700.70 × 161,159.40
  4. Step 4: Simplify right side
    273,133.80x = 66,027,118,991.58
  5. Step 5: Solve for x
    x = 66,027,118,991.58/273,133.80
  6. Step 6: Final answer
    x = 241,739.10

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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.