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Finding the Fourth Proportional to 200,459.64, 300,724.20 and 67,352.88

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Solution

The fourth proportional to 200,459.64, 300,724.20 and 67,352.88 is: 101,040.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,459.64 : 300,724.20 = 67,352.88 : x
  2. Step 2: Convert to fraction form
    200,459.64/300,724.20 = 67,352.88/x
  3. Step 3: Cross multiply
    200,459.64x = 300,724.20 × 67,352.88
  4. Step 4: Simplify right side
    200,459.64x = 20,254,640,955.70
  5. Step 5: Solve for x
    x = 20,254,640,955.70/200,459.64
  6. Step 6: Final answer
    x = 101,040.99

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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.