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Finding the Fourth Proportional to 73,487.64, 110,219.65 and 20,167.16

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Solution

The fourth proportional to 73,487.64, 110,219.65 and 20,167.16 is: 30,247.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,487.64 : 110,219.65 = 20,167.16 : x
  2. Step 2: Convert to fraction form
    73,487.64/110,219.65 = 20,167.16/x
  3. Step 3: Cross multiply
    73,487.64x = 110,219.65 × 20,167.16
  4. Step 4: Simplify right side
    73,487.64x = 2,222,817,316.69
  5. Step 5: Solve for x
    x = 2,222,817,316.69/73,487.64
  6. Step 6: Final answer
    x = 30,247.50

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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.