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Finding the Fourth Proportional to 73,439.96, 110,159.74 and 20,849.48

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Solution

The fourth proportional to 73,439.96, 110,159.74 and 20,849.48 is: 31,274.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,439.96 : 110,159.74 = 20,849.48 : x
  2. Step 2: Convert to fraction form
    73,439.96/110,159.74 = 20,849.48/x
  3. Step 3: Cross multiply
    73,439.96x = 110,159.74 × 20,849.48
  4. Step 4: Simplify right side
    73,439.96x = 2,296,773,295.94
  5. Step 5: Solve for x
    x = 2,296,773,295.94/73,439.96
  6. Step 6: Final answer
    x = 31,274.16

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1.5x scale

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.